Collection of various jam session recordings from PDX collective Portland Bike Ensemble. Using nothing but contact mics and the bicycles they rode in on, this ever-shifting and open collective of musicians twist, rattle and crank a variety of otherworldly groans and screeches from their prepared instruments. Harmonic and even vocal elements pierce through the din of mechanical noises on Session Extracts to insinuate a human origin of an otherwise alien document. Players featured on this recording are Trish Pádraic, Conchita Rivera, Derek Monypeny, Charles Boardman, and Cody Brant.