This coming week will see the release of the next episode of Shaking Through, the “birth of a song” online music initiative from Weathervane Music and WXPN. Last month featured Boston’s Faces On Film that was curated by Marissa Nadler. Over two days, Faces On Film recorded “Waiting For GA.” The entire process was recorded and documented here. Next week’s episode featured singer-songwriter Cat Martino. She recorded her song “I Promise” with help from Sufjan Stevens and drummer Chris Powell from Man Man. The session was recorded at Miner Street Recordings on March 17-18th and was produced by Brian McTear. Below, watch a preview of the session.