Heidi Matthews knows how to rock out—as you'll agree if you ever catch her playing keys and singing background vocals with Seattle’s hard-rocking stalwarts, the Spinning Whips. Heidi will be the first to tell you that being on stage with the Whips is a fun and wild ride. But she has another side. A sucker for sultry jazz, Heidi got a notion to try a new gig, one where she would rock a cocktail dress instead of ripped jeans—as a smoky jazz chanteuse.

She knew she had to give it a try—so she teamed up with jazz guitarist and songwriter Glen van der Ploeg in 2014. They quickly developed a strong musical empathy and a signature sound that is moody, spacious, and intricate. Listeners were surprised to learn they’d played together for months rather than years. Also surprising was how Glen, a Michigan native who had previously written songs only now and then, found his creativity sparked by Heidi's deeply felt delivery of his complex, poetic lyrics. Diving deeper into his craft, he rolled out a string of new songs with various themes and styles reflecting the moods of life in the Pacific Northwest. At the same time, Heidi found her stride as a passionate jazz diva with a badass punk attitude.

Glen and Heidi soon filled out their sound with an acoustic bass player and a percussionist. They hit Seattle clubs and coffeehouses with a name that reflects their moody, heartfelt vibe: Sing Low, Indigo. Before long, they had more than enough material for an album of mostly original, hard-to-categorize music—equal parts jazz, Americana, indie-pop, and lounge. Their debut was recorded in 2016 and released in 2017.

Though Heidi no longer rocks out with the Spinning Whips, she whispers, croons, and belts as lead singer with Sing Low Indigo. And you can't go wrong with that.

In the summer of 2016 the band finished recording their first album of eight originals by Glen and the traditional tune "Wayfaring Stranger."  They were joined in the studio by guests Holly Eckert-Lewis on violin, Gordy Ryan on congas, and Randy Rush on organ and electric piano.  The album, recorded at David Lange Studios, was release in Summer 2017, and is now available for download on CD Baby, iTunes, Amazon, and other online retailers.