It’s another round of Tracks Tuesdays, celebrating the Tracks Music Library, a free local-music streaming service from the Chapel Hill Public Library and Chapel Hill Community Arts and Culture!

Launched last year, the Tracks Music Library now features music from nearly 100 Triangle-area artists. New music is being released every week this month, accompanied by a weekly mixtape with songs from each of the featured artists.

One of this week’s featured bands is Katharine Whalen’s Jazz Squad! Earlier this year, Whalen, Robert Griffin, Danny Grewen and Austin Riopel released an album of Billie Holiday covers called “To Hide A Heart That’s Blue.”

Whalen, Grewen, and Riopel joined Aaron in 97.9 The Hill studios this week to chat about Billie Holiday, the recording process, the feeling of playing live, and their upcoming shows – and they played three songs off the album as well! Listen below.