The fourth episode of the Test Pressing series compilations includes tracks from such artists as Memotone, Giuseppe Ielasi, Andrew Pekler, Rome´o Poirier, Nikolaienko, Felix Kubin, Jake Muir, Felicity Mangan, Star Searchers, and Tarotplane.
The first episode was released in 2012 as a debut Muscut record named so and intended to become a label trial, a test of the audience to check whether the world needs one more label with the following episodes in 2018 (Test Pressing II) and 2020 (Test Pressing III).