2010 release **

""sixty-five minutes long. two periods of thirty minutes each, with a five minute silence between them. each performer find one sound, preferably with pitch. the sound is played for one duration, between one and fifteen minutes, in each thirty minute period, making sure, in the first period, not to cross over into silence. the duration of the sound may change from one period to the next. one of the durations may be zero seconds. (i.e., a player might decide not to play in one of the sections) the sound may be sustained for the whole length of the duration chosen or if it is impossible to sustain the sound for the duration, long sounds may be repeated at regular intervals. the loudness of the sound is in inverse proportion to its duration. (i.e., the longer the duration, the softer the sound) the one minute duration should be a comfortable mp; a fifteen minute duration will be nearly inaudible.""