Obscure No. 4: New and Rediscovered Musical Instruments - Max Eastley, David Toop (1975)
- Max Eastley - Hydrophone
- Max Eastley – Metallophone
- Max Eastley – The Centriphone
- Max Eastley – Elastic Aerophone / Centriphone
- David Toop – Do The Bathosphere
Performer [The Cetaceans] – Brian Eno, Chris Munro, Phil Jones Voice [Solo] – David Toop
- David Toop – The Divination Of The Bowhead Whale
Bass [Prepared Bass Guitar] – Brian Eno
Bells [3 Japanese Resting] – Frank Perry
Drums [3 Bass], Percussion [Large Lorry Hub], Fiddle [2 String] – Paul Burwell Guitar [Prepared Electric], Performer [Bowed Chordophone] – David Toop Harp [Grill] – Hugh Davies
- David Toop – The Chairs Story
Voice [Solo], Flute, Performer [Water] – David Toop