delta, alternatively known as deltaxp or D2LTA, is the side project of the Brazilian artist key vs. locket. Originally serving as an alternate account of twikipedia (the artist’s now-retired alias), the songs under this project primarily consist of experimental rap, pop and other related genres, somewhat reminiscent of those made under that name.

Under this name, she is a member of PlayBack and has collaborated with several artists such as virgingod*, bugs, raken, and neokainn.