From the booklet:‘...English composer Paul Usher also chose the string quartet when he transcribed the Studies for Player Piano No.31 and No.33, whose irrational tempo ratio (√2:2) could only be notated approximately. In the case of the latter composition, which dispenses with clearly defined thematic forms and abruptly changes from long-held chords to rapid figures, we have reached an absolute limit of what can be transcribed for string quartet. There is no question, however, that Usher fulfilled his well-nigh impossible task with considerable imagination, and the highly differentiated sound and great virtuosity of his arrangement pushed the mysterious, fragmented sound world of this piece to an even higher level...’

Felix MeyerEnglish translation by Steven Lindberg