The popular island band Some’tet will play a show at 8:30 p.m. Friday at the Red Bike.

In April 2013, guitarist and composer Michael Whitmore began a Sunday night jam session at Snapdragon Café. The jam session sometimes involved a quartet, sometimes a sextet or trio, but as the group’s website states, “always some’tet.”

Over the next few years, the jam sessions grew into a full-blown and consistent ensemble aptly named Some’tet.

Some’tet includes Barry Cooper on trumpet and flugelhorn; Dianne Krouse on alto and tenor sax and clarinet; Patrick Christie on upright bass; Dodd Johnson on drums and percussion; and vocalist Christine Goering.

The website states, “The music is both composed and improvised. The overall sound is mellow, almost West Coast cool, with moments of intense invention. Add a dollop of American primitivism, clusters of neo-bossanova rhythms, the occasional art song, a torch song, some very soulful vocals and there you have it. Think 60’s era jazz meets Twin Peaks.”

The free show is open to all ages until 11 p.m.