A 15-member ensemble of Boston area improvisers plus guests Jeb Bishop, Tony Malaby and Taylor Ho Bynum, taking their name from the deep-sea submersibles used for exploring, as this band survey's large form improvisation that blends free and melodic jazz in adventurous ways.

Guillermo Gregorio produces a series of compositions that reinterprets the structural concepts of Constructivism, Concretism, and Madi, focusing on the physicality of sound.

Saxophonist Dijkstra in compositions commissioned from the North Sea Jazz Festival 2009, 9 works written for Henry Threadgill, George Lewis, Fred Frith, &c.

Recorded after a tour in Netherlands, Germany & Belgium, Jorrit Djikstra's Flatlands Collective crosses Europe and Chicago with players Jeb Bishop, Jason Roebke, Fred Lonberg-Holm, &c.