If IDM artists like Plaid and Squarepusher had access to less complicated equipment and were born in the 1990s, they might come up with something like Lockbox's Prince Soul Grenade. Is it composition? Cut-and-paste? Sound collage? It sounds like all of the above, with each song constantly shifting in texture, rhythm and tone — but with logic behind it. With its ghostly burblings and enigmatic vocals, "Pridenjoy" builds on the "witch house" mastered by Travis Egedy as Pictureplane. Lockbox has produced a set of glitchy and twitchy video-game songs that are nevertheless oddly comforting and consistently fascinating.