Callum "Paleman" Lee is one of Swamp 81's most decorated artists, having released a string of well-regarded 12" singles for the hyped, bass-obsessed imprint. Yrs Ago is his third EP for the label's 81 offshoot, and sees him joining the dots between techno, post-dubstep bass music, and angular electronica. The title track sets the tone, with robotic voices, creepy electronics and smooth sub-bass riding a metallic, broken techno groove. Flipside "Animus" is a marginally more melodic affair, with spacey chords and bubbling arpeggio lines riding a punchy electro rhythm. Both tracks are naturally rather heavy, and undoubtedly amongst the producer's strongest work to date.