A 5 CD box set of compositions written by Michael Pisaro-Liu using field recordings captured along the Grosse Muhl River in Austria during the 2011-15 Flussaufwartstreiben project, now accompanying performances made along that river by Antoine Beuger (flute), Jurg Frey (clarinet), Marcus Kaiser (cello), Radu Malfatti (trombone), Andre Moller (guitar), and Kathryn Pisaro (oboe).