Sadie Dupuis, who releases music as Sad13, announces a new solo mixtape titled 1331. The project is described as consisting of 13 “one-minute-long-ish” songs, with the release positioned as a collection of short tracks that follows her previous solo album Haunted Painting (2020). Multiple outlets report that 1331 is made entirely by Dupuis, who performs all parts and records the material herself. One report notes she returns to recording and producing solo for the first time in 15 years.

Ahead of the full mixtape release, three songs from 1331 are released now, with listeners able to preview the project’s sound. The outlets characterize the tracks as blending playful or whimsical elements with a noisy edge, suggesting a mix of fun and intensity across the short-form compositions. The mixtape’s title and format emphasize brevity, with the 13 tracks designed around tight, approximately minute-long durations.