Elizabeth Joan Kelly and David Rodriguez are composers, musicians, academics and sonic explorers from New Orleans, Louisiana, and today their Orca, Attack! project released the surreal and psychedelic “listening guide” C.M.S.O. (Learning by Listening Vol. 1). You can take an apricot-colored, helix-shaped trip with its “Conclusion” above. Out courtesy of Cologne, Germany’s Strategic Tape Reserve, you can buy cassette and digital versions of the collection now from Bandcamp.