Effective period / Period of releases: 2001 - 2004

Members: Larry Grenadier, Ben Perowsky, Jeff Ballard, Ben Street, Rodney Green, LaFrae Olivia Sci, Chihiro Yamanaka, Ray Parker (7)

Nominal title given the number of members over so few releases.
First album rhythm section: LaFrae Olivia Sci (drums), Ray Parker (bass).
Second album rhythm section: Jeff Ballard (drums), Larry Grenadier (bass).
DVD rhythm section: Ben Peroswky (drums), Ben Street (bass).
Third album rhythm section: Jeff Ballard (drums), Rodney Green (drums), Larry Grenadier (bass).

once Chihiro Yamanaka moved to a major label she retained the trio format for most recordings but all subsequent albums were released under her own name, with the exception of the live album under the group name, The Spheres.