Rein Vaska is a songwriter, multi-instrumentalist, and producer from Northern California. His music is lush and grainy and genre-blending, incorporating influences of R&B, jazz, dreampop, electronic music, and shoegaze.

He has played in and recorded with various indie rock bands and has produced songs for multiple independent artists. In 2024, Rein wrote, recorded, and released a self-titled psychedelic indie album with his duo project, Montara.

At Williams College, Rein played drums in jazz ensembles, theatre productions, and independent student bands, and was the music director for the Purple Rain a capella group.

In 2025, Rein wrote Wishbone, a contemporary song cycle for voice, nine-piece ensemble, and electronics that set poems by Richard Siken in an immersive, vocal-driven style.