"The music of "hyperpianist" Denman Maroney (born 1949) is inspired by nature and the music of John Cage, Ornette Coleman, Henry Cowell, Duke Ellington, Charles Ives, Scott Joplin, Olivier Messiaen, Thelonious Monk, Conlon Nancarrow and Karheinz Stockhausen among others. Maroney plays what he calls hyperpiano, which involves bowing and sliding the strings with copper bars, steel cylinders, Tibetan prayer bowls, rubber blocks and CD cases and gives him a unique sonic vocabulary. He also uses a system of temporal harmony based on the undertone series that allows him to improvise and compose in several tempos at once.

Maroney also has worked with musicians Tim Berne, Jane Ira Bloom, Jon Deak, John King, Garrett List, Roger Miller, Michael Moore, Bob Ostertag, William Parker, Bobby Previte, Ed Schuller, Elliot Sharp and Peter Zummo among others, and dance and theater artists Davidson Lloyd, Sin Cha Hong, Tom Keegan, Tom Lillard, Erin Martin, Wendy Osserman and Mel Wong among others.

Maroney was educated at Cal. Inst. of the Arts (MFA '74), Bennington College and Williams College (BA '71). His teachers included John Bergamo, Alan Chaplin, Bill Dixon, Jimmy Garrison, Leonid Hambro, Ingram Marshall, Steven Mosko, Morton Subotnick, and James Tenney."

"Scott Walton has performed with George Lewis, Wadada Leo Smith, John Carter, Vinny Golia, Bobby Bradford, Nels Cline, Quincy Troupe, Ray Anderson, Toshiko Akiyoshi, Clifford Jordan, and Al Cohn, among others. He has collaborated with poets, dancers, performance artists, and filmmakers. Current projects as a bassist in addition to Cosmologic include the Vinny Golia Quintet, the Rain Trio (with Alex Cline and Eric Barber), and ongoing work with Harris Eisenstadt, Erik Griswold, and Jason Stanyek. As a pianist he has commissioned and premiered works by numerous composers (David Lipten, most recently), has toured with the Octagon Ensemble, and has collaborated in interactive computer and multimedia performances with Vibeke Sorenson and Harry Castle. He is currently performing music of Henry Cowell, and an improvised interpretation of Charles Ives' Concord Sonata. Walton is featured on recent CD releases by the Vinny Golia Quintet (One, Three, Two), O'Keefe, Stanyek, Walton, Whitehead (Tunnel), Nathan Hubbard (Skeleton Key Orchestra), Jeff Kaiser (17 Themes for Ockodektet), Chris Chafe (Arcology), and Anthony Davis (Tania). He has recorded on the Soul Note, Nine Winds, JazzHalo, Circumvention, pfMentum, Koch, Innova, Centaur, Albany, and Revelation labels. He is a member of the San Diego based Trummerflora Collective."

Denis Fournier, born 1954 in Montpellier, is a French drummer and improviser, known for the groups Concept, Denis Fournier 4tet+, Denis Fournier Trio, Paris Musette, Une Anche Passe, and Watershed.