Sanchez / Greenlief / Ospovat

NYC pianist Angelica Sanchez and frequent Bay Area collaborators Phillip Greenlief (saxophone) and Sam Ospovat (drums) play improvised music — not the free-wheeling sounds you would expect from the purveyors of classic free jazz, but rather music that is improvised with a mind for creating spontaneous themes, melodies and forms that the musicians use as a springboard for variation and development. Seattle saxophonist Jacob Rex Zimmerman and Bay Area guitarist Jameson Swanagon open.