professor rhythm is the production moniker of south african music man thami mdluli. throughout the 1980’s, mdluli was member of chart-topping groups taboo and cjb, playing bubblegum pop to stadiums. mdluli became an in-demand producer for influential artists (like sox and sensations, among many others) and in-house producer for important record companies like eric frisch and tusk. during the early ’80s, mdluli projects usually featured an instrumental dance track. these hot instrumentals became rather popular. fans demanded to hear more of these backing tracks without vocals, he says, so mdluli began to make solo instrumental albums in 1985 as professor rhythm. he got the name before the recordings began, from fans, and positive momentum from audiences and other musicians drove him to invest himself in a full-on solo project. it was the era just before the end of apartheid and house music hadn’t taken over yet. there wasn’t instrumental electronic music yet in south africa. as the ’80s came to a close, that was about to change.

1997. drexciya dont have no phone. theyre too busy to do your remix. mad mikes response was short and to the point, enough to put off some, but not vincent koreman. addicted from an early age, the dutch producer dug deeper and deeper into the mythology and mystery of james stinson and gerald donald. the sounds, images and ideas conjured up by the detroit electro duo pulled koreman in, his fascination growing ever more intense as the underwater dwellers sonically prospered. fast forward twenty years and that fascination has not diluted one drop, in fact the aquatic dream of the wavejumpers is the inspiration for recolonization. these tracks would have never had existed, says koreman, if it wasnt for stinson and donald creating that great, energetic, abstract electronic music and coupled it with an original vision on the african diaspora, art and culture. this music is an homage to th e enigma of drexciya, a tribute to the machine marine men who pioneered electro and a vision. drvg cvltvre continues that vision, one of an underwater race that has reconquered earth, overcoming big business, corporate greed and water pollution to reclaim the surface from man. forget mankind. our time is over, recolonization is here.

for their 12th label anniversary, jazz & milk have decided to launch a new series called “twelve inch jams” in order to celebrate vinyl culture and the legendary 12&#8243,,, format! jams002 sounds the bell for the second round of the series including a 10 years re-issue of the classic sam irl cut “you don’t feel enough”. originally released as a b1 tune on his “african dance ep” debut on pulver records in 2007, this jazzy house gem found its way into the record bags of many influential djs over the years. from session victim, glenn astro, max graef to hodini… the record never disappeared in club sets but certainly from discogs a good while ago. so it was about time to give the tune a second life and finally press it on the format it deserves - a whole 12&#8243,,, side. the german production duo session victim are well-known fans of the track describing it as their secret weapon playing it in quite many dj sets for years, including their 2015 appearance for mixmag’s dj lab. hence, it is a great pleasure that session victim contributed a remix to the new release. their absolutely elegant and groove-driven version with a charming 90’s touch to it makes a brillant counterpart to the original with its jazzy piano-, drum- and double bass samples leading to an epic synth break that regularly causes ecstatic moments on the dancefloor.

aaaron joins forces with newcomers deckert and singer valentine to unveil the new title track for connected. the three combine all the talents of each individual to create something really special. while aaaron provides a sub heavy african inspired groove pattern and combines it with deckert’s intense harmonies, valentine finishes off the track with her touching voice performance and lyrics that are both melancholic and deep. wether you listen to it on your odyssey through the night or while watching the sun rise again: if you had to choose a hymn for your last night on this planet, ‘l.d.o.e.’ might be your future pick. floyd soaks up everything that was happy, bright and ancestral and pushes it straight into the void twisting it into a hypnotic techno chant where leftovers leave nothing but ashes behind. perfect for a rough peaktime approach or the early morning hours when the storm is hitting the coast. this track is a predator and will haunt you in your dreams through an endless jungle of insanity.

the second reference of mostly records only vinyl includes jorge savoretti as flafour project, pedro d’alessandro from the underground córdoba city scene. our friends from rosario, uefr, presents their covert participation on this release and finally, to open this reference, the founders of mostly make an exquisite collaboration for the dance floor.

danyb s next wave of tunes picks up where the first two left off, with an added refined quality. not to mention, a second rendition of the buzzworthy south african gem from vol. 1 on the b side making for a back and forth opportunity for the ages at the mixing console. with volumes 1 & 2 doing the business out on the floor, volume 3 is sure to please, with a variety of tempos and energies packed into one heavyweight slab of re-tooled obscurities. gravi affari!

vintage african musics treated in breakbeat mode though chants focused & in barranquilla and cartagena style

giving us a preview of his forthcoming album maktub, satori is next to release on crosstown rebels with umama. the single features alongside remixes from three of the most prominent artists from today’s house scene.
demonstrating his incredible ability to incorporate world sounds into his music, satori mesmerises with umama. amidst a soiree of african percussion is a soothing hypnotic chant, all encased in alluring synths. italian legend riva starr’s jazzy take on the original, integrates the chanting vocal as a futuristic anthem. louie vega maintains an ethnic feel. his remix, alongside an instrumental, encompasses futuristic synths with a sturdy kick throughout.

making a debut appearance on our own invisible ep 6 compilation last year we re very happy to at last feature a full 4-track ep from the mysterious immaculate rivombo. again the music is filled with that signature sound of live african percussion and 303s but this time with additional thumb pianos, hypnotic vocals and spacey synth lines. purporting to be from burundi (for all we know this could be the product of an elaborate ruse emanating from berlin tbh) the enigmatic producer (he? she? they?) has once again excelled and produced an ep that manages somehow to sound uplifting and spiritual at the same time as it is deep, dark and dubby. whatever, the music s great and that s what matters. definitely one to watch out for. another great ep from invisible inc. trippy, far out sounds. my pick is b1.killer party tool!! (thomas von party / multi culti) this is so good!! (auntie flo / highlife / huntleys & palmers / sofrito / mule musiq) really, really like this (jd twitch / optimo) bomb! b2 (jose manuel / music for dreams / kinfolk / eskimo)

back available as a limited vinyl edition (500 only) for the first time since 1985. featuring key players like bernie worrell, bill laswell, mory kanté and herbie hancock ! manu dibango needs little introduction, born in cameroon in 1933, manu developed a musical style fusing jazz, funk, and traditional cameroonian music. he’s definitely among the best known african artists outside of africa. collaborations were numerous and include top acts like fela kuti, herbie hancock, bill laswell, sly & robbie, don cherry and bernie worrell. in addition to selling hundreds of thousands of copies of the albums he recorded, he played such huge venues as yankee stadium and madison square garden.

joe claussell joined the mushroom house series! the new york city dj and music originator made one of his rare remixes. for the toy tonics series. claussell is a pioneer. blending african and brazilian rhythms with disco and house since the early 1990ies. inspiring the music world with his labels spiritual life music and ibadan records and with his legendary body & soul parties that he run for 6 years with francois k and danny krivit in nyc. for toy tonics he remixed an obscure afro funk song by german afro - kraut band karl hector & the malcouns and nicolas tounga, singer from burkina faso.

jeph1 uses hand-made spring reverb devices, east african traditional instruments, tube delays and field recordings all amalgamated in order to create a piece of music that pays tribute to the principles of uk sound system culture.
mc trooper adds a layer of energy with his conscious lyrics praising the positivity of roots music to exalt the king & chant down babylon. grand ancestor’s tenth release is sure to be a fixture pon di circuits.

u-roy was a true reggae pioneer, dubbed the originator for good reason. bursting onto the jamaican scene in the earliest 1970s, he pioneered the vocal approach called ôtoasting,ö which in addition to branching out jamaican music into a new era, was also heavily influential on an american genre in its infancy: rapping. on dread in a babylon, his third full-length, he stretches out over traditional roots grooves provided by the soul syndicate and skin, flesh & bones bands, riffing on topics including love (ôrunaway girl,ö a 1975 single released in the uk on virgin records), the bible (ôthe great psalmsö), walking the straight and narrow (ôlisten to the teacherö), and even his take on governmental policy goals (ôchalice in the palaceö). the album finishes with an instrumental version of bob marley & the wailersÆ ôtrench town rock,ö for good measure. u-royÆs style and charisma are always on display, and û as with all of his classic records û the groove rules all. presented on black vinyl with a poster of the glorious, ganja-drenched cover art, itÆs the perfect chance to revisit one of the more underrated voices in jamaican musical history.

the arrival of marvin parks on today’s musical scene can be considered a very fitting addition to the renaissance of the afro-american jazz crooner panorama, deeply rooted in the black music tradition. having his roots in gospel and in the ’50s and ’60s jazz singers by the likes of nat king cole, johnny hartman and joe williams, marvin parks yet remains by all means an artist of today.
in his debut marvin shapes his light baritone colors within the sound of a well-established group of musicians under the direction and production of nicola conte. the main idea was to create a soundscape to give a different light to well-known standards and some originals.

-meet tino baroza- is an album in which the virtuose guitar style of the cameroun guitar player tino baroza is mixed with other musical influences. it s a journey between traditional african music, like soukouss, coupé décalé, or ndombolo with more europe

a year after danger, their debut ep on blank mind, durban-based crew audioboyz join forces with hypermedium to deliver another instalment in the growing chronicles of gqom, the darker deviant that grew out of south-african house and whose shockwave is still resonating across western dance floors.

top tip for boards of canada fans! gorgeous isolation wrapped in electric memories. 8-track electronica for homesick time travelers. nothing left to abandon is a slow rendering of brooding introspections and imaginary spaces. memories, visions, eroded philosophies, tragedies in a few words. a childhood of livid skies, barren escarpments, homeless wastes. an absorbing contemplation of unlikely beauty and dusty melancholy that intersects with the creative territories of vangelis, boards of canada, klaus schulze, and ulrich schnauss, and the musings of joe frank and robert ashley. clocolan is south african-born composer emlyn ellis addison. a long formal training in music, his work centers on original writings and the found sounds of abandoned ideologies--generations of radicals and skeptics searching for meaning. from his childhood in south africa--a landscape of neglected hinterlands, eroded topology, unconquered vastness--emerged clocolan s homesick, lo-fidelity electronica, expansive themes lost in the background noise of human affairs.

raoul k is known for blending the sounds of real westafrican instruments and modern electronic clubsounds into one mesmerizing soundscape. this time, he takes a new approach: the original mix is produced without the use of any electronic instrument. just pure african sounds, chopped and melted together into one groovy slice of contemporary clubmusic. this is the first release in a series celebrating the tenth year of baobab music… which will lead to a new raoul k album. electronics aren’t completely left out. the blending, however, was left to the remixers this time: irfan adds a good measure of energy in his mix, setting up some analog synths with raoul’s beats. watch out for the break… kaito delivers a very dreamy remix which seems to lose its kickdrum but does not lose its groove. dance into the sunrise. choose vinyl, please

meer is the experimental and ambient project of the techno rave producer ambre. in between industrial sonorities, occult rhythms, arabic references and electric guitar improvisations, meer aims to combine the occidental and oriental cultures. through dark atmospheres inspired by his north african roots, he composes his first ep on voidance recordings, -yawm alhissab, rabbok sayakouno aadowok ».

for fans of the italian avant-garde, few names inspire the loyalty and devotion offered to the percussionist and composer lino capra vaccina - a perfect emblem of the country’s extraordinary movement of musical minimalism. he first gained note as a member of aktuala, a project which laid the groundwork for a entire generation of practitioners following in their wake - creating a hybrid of rock, avant-garde, and ancient musics, while incorporating a diverse number of sonic traditions from across the globe - african, middle eastern, indian, etc. vaccina’s career as composer has been marked by two distinct features, an incredibly high bar of quality and ambition, and a tragically slim amount of recorded output. following his departure from aktuala, he worked extensively with others - juri camisasca, franco battiato, etc, and within the short lived super group telaio magnetico, but his astounding solo efforts have been slow to emerge. in 1978 he released the legendary lp antico adagio, and wouldn’t be heard from again until 1992’s equally extraordinary l attesa. fortunately, over the last few years, the milan based imprint die schachtel, has embarked on a multifaceted project - reissuing vaccina’s hard to find lps for a new generation, as well as offering a range of stunning archival recording which had never before seen the light of day. their latest release, an lp entitled echi armonici da antico adagio, falls into the later category. it is nothing short of a momentous even

roots vocalist barry brown has an inimitable style that has long made him a favourite of reggae enthusiasts. drawing from the popular phrasing of horace andy, but morphing it into his own delivery through the kind of wordless slurring that occasionally resembles the sound of a quacking duck, brown found his way into the jamaican music scene through the many amateur west kingston talent contests of the early 1970s, along with fellow aspiring talents such as johnnie clarke, sugar minott and the african brothers, and the mighty diamonds. he also honed his vocal skills on local west kingston sound systems such as tape tone, together with other young dancehall-oriented youth such as barrington levy, sammy dread, roy taylor and tristan palmer. there are still conflicting claims as to who was the first to record brown, with production veteran bunny ‘striker’ lee and sugar minott among the contenders, but in any case, during the late 1970s and early 1980s, he produced a range of captivating work for various producers, much of which is rightly coveted today. ‘ital rock’ appeared on barry’s 1983 lp i’m still waiting, issued by rocktone international, a spin-off of sugar minott’s black roots outfit, based in queens, new york (with a further branch in toronto), the b-side has dean fraser’s previously unreleased electrifying saxophone cut, rescued from dub plate obscurity by jah fingers.

sterns edits is a new collaboration between legendary african & brazilian label and distributor sterns music and london producer and label owner ben gomori.

stefan schwander aka harmonious thelonious is definitely not a newcomer. he has been around for a long time and has already released lots of amazingly varied music on labels such as emotional response, italic, meakusma and diskant. he’s also an integral part of the infamous duesseldorf / salon des amateurs axis that is an obvious hotbed of talent. he describes his style as -american minimalism vs. african drumming vs. european sequencing-, a heady mixture which is clearly evident on this ep though with a definite middle eastern twist. here at versatile hq we were introduced to this clutch of tracks by one of the members of acid arab and we were totally blown away. stefan has a very unique production style, fusing all of the above elements with a hint of gamelan, a dash of tweaked fm synthesis type sounds with a dose of warm ambience and finally his own singular touch on the mix. we are very happy to present you these 4 tracks to you, an essential ep from one of european music s true originals.

after a highly-regarded debut single on names you can trust back in 2014, combo chimbita returns, expanded and transformed into one of the most original and wild ensembles currently cutting their teeth in the new york city live arena. their latest 4-track studio effort, el corredor del jaguar, co-produced by nyct s greenwood rhythm coalition and featuring the powerhouse carolina oliveros on lead vocals, is an explosive tour de force of unbridled psychedelic energy and futuristic fire with firm roots in the ritmo of the african diaspora. with connections and inspiration drawn from the vast sea of caribbean music - specifically the band s native colombia - these transplanted first-generation new yorkers have carved a unique corridor in the thriving underground jungle of the big bad city.

r vincenzo is a young producer from sao paulo. sample machine. instant collages. mashup. ready-made. digital macumba. psychedelic punch. livesets deconstructing and compounding tunes of african, balkan, brazilian ritualistic sounds, funk carioca, assorted cumbias, old folklores, japanese tunes and other beats creating a fusion of musical styles. fresh & live. sample colector from a wide range of regions and folklores, r vincenzo works compounding and mixing different music backgrounds,resignifying and producing new atmospheres,melting organic and electronic sounds, live, in multi-processed audio layers. second vinyl ep 12- to be released on june 2017 r vincenzo is an activ member of voodoohop collective in sao paulo.

triple lp and bonus 7 inch with 8 page booklet. includes free mp3 download with 8 extra tracks.
soundway records present kenya special: selected east african recordings from the 1970s & 80s - a treasure-trove of rare and unusual recordings from east africa. kenya special is accompanied by detailed liner notes, original artwork and photographs. it follows on from soundways much acclaimed african special series that to date has focused on the highlife and afrobeat output from 1970s nigeria and ghana.

portable is alan abrahams, a south african born artist, producer, and celebrated live act who has released his minimal wares on cult labels like perlon and live at robert johnson, as well as his own süd electronic label. abrahams’ first lp for !k7 is his most personal yet, taking the artist’s given name for its title. the album places portable’s distinctive vocals front and center, showcasing some very real song writing skills next to abrahams’ own piano playing, in addition to a few choice collaborators.
double vinyl release with cd-copy of the album included.

sunlightsquare keeps on exploring multiple style of house music this summer. the previous single from the last month -oyelo- was a winning combination of authentic latin cuban music and classic 909 house beats. it was championed by ron trent, osunlade, hunee, bradley zero, nick the record and atjazz to name a few. this time, the main man and keyboard wizard claudio passavanti deployed two remixers for deeper and more spiritual endeavour to showcase his magical composition. hailing from the birth place of south african house music pretoria, the talented young producer blaqtone laid out beautiful sunset pad, earthy african percussions and solid rolling beats, all work like magic with claudio s original spiritual keyboard works. on the flip side, kay suzuki pulled off another dubbed out psychedelic mix with -astro dub-, just like the previous release, and the more dance-floor oriented classic deep house style of -moon mix- influenced by the likes of larry heard. the track features sequenced mini-moog bass line and call & response drum programming before blissful harmonies and melodies kick in.

its just over a year since we started our new label, real balearic. for our second artist album we are really pleased (and honoured) to welcome one of the few djs who can claim to be one of the founders of the eclectic balearic sound. take a trip back to the 70s and 80s in northern italy and you will fine daniele baldelli mixing up electronic, african and slo-mo disco records to co-create the electronica meccanica sub genre. records often would be played at the wrong or variable speed to be made to fit into a wide aural tapestry of his unexpected-but-seamlessly-flowing dj sets. this of course is an aesthetic close to us here at real balearic. a sound we are ever so pleased to have as part of the mixing pot for our new balearic label. for the album he pairs up with fellow italian dj rocca to serve up an eclectic â€,“, electronic â€,“, balearic feast.

last volume of this compilation series, again a great one.., holding amazing tunes from across the globe that you probably already have been looking for.... tip!! . over the last five years and as many volumes of their beach diggin’ compilations, guts and mambo have explored the reefs of five continents, dredged the sea beds of countless seas and oceans, examined every single seashell with the aim of making sure that no vinyl pearl should escape their notice.

the independent, south african record label mushroom hour half hour presents open letter to adoniah, the moving albums by talented guitarist and songwriter sibusile xaba, who improvises the musical legacy of kwazulu-natal into an exciting, genreless future!

the passport to paradise gang are in fine form as they serve up four more tripped-out disco edits for the globally-minded savant. we take sail with the excellent thru wit waitin, a beefed-up guitar chugger reminiscent of 70s aor in its steady percussive work and misty sax solo. it s the guitar line that really shines here, lifting the tune into funk transcendence in the bridge. anybody out there reaches out to the disco trippers with its northern italian cosmic kitsch feel: starry-eyed synth pads float above reverb-soaked guitar musings and playful french vocal samples. a particular highlight. on the flip, ptp take things south with a soulful west african shuffler guaranteed to elicit some arresting footwork. the ep leaves us with resounding vibrations from the far east: jp wave explores ethereal planes, building up a dense rhythmic fabric punctuated by bass stabs and ornamental chimes. this is a clever bunch of edits for the more discerning selectors and enthusiasts out there- act fast.

double gatefold vinyl album edition comes with full colour inners + bonus download code and includes full sleeve-notes/photography.

first release for nativsoul on qalomota records. this perfect afrodeep ep straight from african spirit contains the masterpiece desert sun mix. hipnotic and deep, tribal and strong, the original mix and tribal ceremony mix complete the ep.

dodi palese is back with his third ep on what ever not, the label he cofounded with dan mela.as his discography tells, dodi speculiarity is surely to mix together different genres andsounds, trying to avoid any classifications. in slightly ep this is confirmed, funky raids in child goes funky , african groove for birdsong and raw sounds in slightly . we hope you

from the first moment raoul has sent it, innervisions felt something special about toukan. dixon worked out the pure essence of the track to give it a more dancefloorfriendly twist whilst trikk set the focus on the instrumentals, creating a dubby african techno excursion.

(180 gr) mark barrott steps away from the balearic sound hes become synonymous with to take a journey back to the territory he first explored with bepu ngali. the pathways of our lives is a joyous, life affirming piece of 70s afro soul with amodern twist, continuing barrotts love affair with african polyrhythms and 70s philly strings.

chaim, chaim, life, we here in the disco halal hq are so happy about the fact you joined us, you are a true gentleman, a melodic genius, and really the missing link in the chain of our releases. for you who still haven t heard about chaim, we urge you to do a small search and find this universe, no less, of music that he has created on top labels such as bpitch, jeudi, and so many more. as a moroccan decedent chaim graced us with his fresh approach to north african music, summing it up with banging beats and percussions. the perfect circle, lives up to his name, it feels like chaim finally went back to where he has came from.

we’re excited to announce the first in a series of rare nigerian releases we’re putting out with the help of uchenna ikonne. sjob movement’s friendship train was the second lp by the group and one which saw the group rise to new heights. it’s a masterpiece of african music with it’s fluid afro beat grooves and spaced out moog synthesizer sounds.

re issue of timmy thomas s long sought after -afrcaino- 12- excavated from the deepest realms of the tk disco vaults. when it comes to this deep disco cut, africano is one of those tracks that became a dancefloor favorite of danielle baldelli who during the 80s played disco, african records, american r&b, and reggae to create what has been since become known as the afro-cosmic scene at the height of club culture in the discotheques of northern italy. remastered, represented and brought back into focus for 2017 s dj bags and dance-floors! as usual, these tk represses are always done in the proper manner. 100% legit re-edits, from the archive, remastered and released in conjunction with henry stone music / tk disco - miami fl.

the 1981 album from boney m back on vinyl, high-resolution mastered from the original source.

hot release from south african producer dj call me. digital, sunlit and soulful house for your heart. perfect to bang a club with love. all tracks were written and produced between 2009 and 2010, in mokopane, south africa.

the 1984 album from boney m back on vinyl, high-resolution mastered from the original source.

official mr bongo reissue. licensed from george prah, founder of gapophone records.
marijata was a group made up of three members – kofi electric addison on drums, bob fischlan on organ and nat osmanu on guitar, hailing from ghana. ‘this is marijata’ is the groups first lp, released originally on the gapophone label – it is pure, rootsy, raw, driving african funk music of the highest order, now highly sought-after in both its original and previously reissued forms.

limited dj friendly double vinyl edition.
harmonies is the new long player from underground super-producer lord echo. the new album solidifies his already distinctive mutations of reggae and rock steady with disco, african soul, techno and spiritual jazz. in other words, the lord has returned from the wilderness with a bounty for his followers. eat of the bread of life and enjoy access to his crazy world of sound.

since its release last year, the grammy nominated album louie vega starring…xxviii has reached unfathomable heights, after 8 single vinyl releases and two full triple set album releases, we still have one more up our sleeve. today, here we are in the third and final installment of the louie vega starring…xxviii vinyl album release series, this time taking it to another level with unreleased and lost mixes. when making an album there are usually way more than the number of songs allocated for the project. in this case there were over 50 songs and tracks created for the louie vega starring…xxviii album. vega has selected 14 unreleased and lost tracks from the recordings and put together dj friendly versions with these super talented artists involved: funkadelic, nick monaco & soul clap, kenny bobien, cindy mizelle, maphorisa, berita, wanda baloyi & kabomo (south african top talent), roberto roena (of the fania all stars), brutha basil, jesse jackson (blues rock artist), sara devine, luis salinas (argentinean guitarist), duane harden (song/hitmaker), & 3 winans brothers featuring the clark sisters. the packaging is lovely with an open gatefold huge picture of a mural painted by none other than richard wilson uk artist. mastering by the great walter coelho, for sonic perfection & pressing manufactured by optimal in germany.

reissue of this incredible and highly sought-after futuristic 12 from 1981. both songs have been remastered for vinyl by george horn at fantasy studios in berkeley. the jacket is an exact replica of the 1981 edition with artwork by angela boy, inspired by primitive electronics and african paintings. each copy includes an doubles-sided insert with photos and liner notes by jean-marie salaun

the 04am a-side contains two south-african 80 s bubblegum tracks, revamped by young dj and producer perdu. he provided the tracks with delicate intros and rearranged them with new percussion, synths and deeper basslines. on the flip afrobot delivers two kind of new beat cuts, making the originals more abstract by some heavy chopping, reducing the amount of samples used, and adding disco breaks to the track jungle. handstamped with another drawing by frank koedood.

south african house and synth-funk from the kwaito era by the legendary senyaka kekana. the unexpected deep house jam bayanyonyoba (1993) and the illustrious soul song dont judge me bad (1987) are big rh favorites. original copies are absolutely impossible to find, now released on 12inch for the first time. beautiful sleeve by stenze quo! esa williams i had the pleasure of performing alongside senyaka at the alexander theatre, johannesburg back in 2012 which would have probably been his last most iconic gig before his passing in 2015. these two tracks really showcase the sounds of south africa around the early to late 80’s, the influences from american synth pop and house that would then lead later into many of these records being played at the wrong speed which ultimately became the original kwaito sound from south africa