Redshift — billed as “jazz with increased wavelength” — will be playing movement-inducing music at the Treehouse Café during a special free dance party concert at 7 p.m. Sunday, Sept. 1.

The group promises eager dancers a unique song list comprised of tunes from the 1930s and ’40s, rhythm and blues from the ’50s, danceable pop and rock from the ’60s and onward, and classic Latin dance numbers, too, in addition to swing, Nightclub two-step, the waltz, foxtrot, cha-cha, rumba, salsa, and more.

There is a $10 suggested donation for admission, which is open to those 21-and-older only.

Visit www.treehousebain bridge.com to learn more.

Redshift​ first took shape in 2011 as the BBC Jazz trio, formed by Kurt Bischoff, Dave Bristow and Neil Conaty for a one-off performance at a local fundraiser.

The name reportedly derived “from their initials and Dave’s accent.”

The trio stuck together enjoying regular rehearsals and gradually built a reputation locally as a fairly serious musical group. This prompted the need for a real name, and “after an evening round the fire with a bottle of tequila,” it was decided that Redshift, the elongation of light waves into the red spectrum due to the recession of the distant stars, “somehaow reflected the diminishing chances of reaching stardom for the band.”

Playing with guest musicians has always been part of the band’s culture and one of those guests, Kurt Festinger on tenor sax, became a regular member of Redshift early in 2017.

Later that year, Bischoff was able to resume his interest in travel and exploration and played less regularly with the band, who now work with a rotation of drummers popular in the Seattle and Kitsap jazz scene: Dylan Savage, Robert Rushing, Don Deiterich and Tom Svornitch, among others.

The Treehouse dance party concert will feature vocalist Shannon Dowling.

She has a degree in vocal performance from Humboldt State University with a musical theatre certificate, and is currently the owner/instructor at BISA Vocal Studio, where she teaches vocal performance, audition skills, collaborates with students on their songwriting endeavors, and collaborates with local venues to bring New Talent Night to Bainbridge Island.

Dowling recently collaborated with inD Theatre to direct “The Last 5 Years” at Rolling Bay Hall, can be seen singing and playing flute and hand percussion with the Cuban Heels. She also performs with other musicians around town regularly.

The rest of the group are similarly ubiquitous ‘round the local music and arts scenes.

Rushing graduated from Berklee College of Music in 1983. He has many years experience in theater, jingles, and live performances in jazz, blues, and rhythm-and-blues. He’s a former instructor at the Drummer’s Collective in New York and has performed with Marian McPartland, Jessica Williams, Herb Pomeroy, and many other jazz luminaries.

Bristow was born in London and has worked as a professional keyboard player, sound designer, electronic music consultant and music teacher. He has recorded with United Kingdom guitarist John Etheridge, violinist Ric Sanders and singer June Tabor, and as a performing musician has toured the world demonstrating synthesizers and teaching electronic music. He was a key contributor to voicing the well-known Yamaha DX7 and other synthesizers.

He also ran the Island Music Guild, a Bainbridge nonprofit community music school for four years, and now teaches Electronic Music and Synthesis at Shoreline Community College.

Conaty picked up the bass and guitar as a 12-year-old and has been on a voyage of discovery through classical, rock, bluegrass and jazz music ever since. His main interest is finding the perfect line to bring rhythm and harmony together.

Festinger has taught woodwinds, jazz improvisation, and general music both privately and at the community college level for more than 50 years. After 37 years on the bandstand in Los Angeles, he now maintains a woodwind presence in the Kitsap/Jefferson county jazz scene.

Visit www.redshift-theband.com to learn more.