"We started out as romantic partners at the beginning of the album and then we weren't anymore by the end". Kalmia Traver describes the unique circumstances of making Rubblebucket's latest album Sun Machine with Alex Toth, who she met in college over 15 years ago. The two brass musicians and singers perform live and share their story, which includes Kal fighting cancer, Alex getting sober, and a break-up ritual so unique and so deep that we can't stop thinking about it.