Frith said that his composition, "Bittern Storm over Ulm" was a "perversion" of one of his favourite Yardbirds songs, "Got to Hurry" (1965) into which he added bars, beats and half-beats. Live performances of this piece were released on Henry Cow's "Road" box set under different names ("Heron Shower over Hamburg" in London in April 1974, and "Brain Storm over Barnsley" in Amsterdam in December 1977). "Solemn Music" was from Henry Cow's music for John Chadwick's production of Shakespeare's "The Tempest", and is the only piece from that suite to be released. The vocal/piano piece at the end of "Deluge" is sung and played by John Greaves.