Anyone who takes their old-skool hip-hop seriously knows Main Source were the real deal, and their 1991 album Breaking Atoms remains one of the greatest albums in the genre. While there was an eventual follow-up in 1994, hip-hop folklore has often spoken of their shelved 1992 LP The Science. Bar the odd bootleg single or demo here and there, the album has never been heard but now a major missing piece in the story of early 90s rap is being put back into its rightful place, as P-Vine present the first ever release of The Science, cut from the group's own master tapes and guaranteed to be a new favourite for anyone who values the golden age of beats and rhymes.