What is so captivating about a pitch-shifted vocal sample? Is it just good old existing IP, scratching the same itch for the trillionth time? Is it the thrill of hearing a sound you thought was fixed respawn somewhere totally new? Loukeman ’s eggs are in the latter basket. The Toronto-based producer’s wistful, anemoic dance tracks trawl for vocals across pop, folk, R&B, and hip-hop of the past decade, a net that dredges up Bryson Tiller and Lomelda with equal gusto. But it’s his rendering, like sonic sfumato, that’s the crux of his music. Using an Analog Rytm saturator and a few choice plug-ins, Luke Fenton approaches sung snippets like wet clay, endlessly moldable with a little osmosis. As he put it in an interview last year, he aims to “glue everything together and fuck everything up.” His new album, Sd-3 , gets it nice and stuck.…