First-time gatherings can produce stellar improvised music, but there’s a particular joy in the comfort of playing with friends — not because it gets “comfortable*”, but because a common bond lets the group move as one. Saxophonist and flutist Biggi Vinkeloe has assembled that kind of crew with Au Quotidian. A resident of Sweden, Vinkeloe visits the Bay Area frequently and has built a rapport with the top-flight musicians here. With Donald Robinson on drums, Teddy Rankin-Parker on cello, and Joe Lasqo on piano and laptop, Au Quotidian mixes the confidence of the familiar with the excitement of the unknown, the musicians keying off one another’s invisible cues to create a fluid, elegant machine.