- Improved Sound Limited · 1971
- Rathbone Hotel · 1976
- Engelchen Macht Weiter - Hoppe, Hoppe Reiter (Original Motion Picture Soundtrack) · 1969
- Catch a Singing Bird On the Road · 1973
- Rathbone Hotel · 1976
- Rathbone Hotel · 1976
- Rathbone Hotel · 1976
- Rathbone Hotel · 1976
- Rathbone Hotel · 1976
- Rathbone Hotel · 1976
- Rathbone Hotel · 1976
- Rathbone Hotel · 1976
- Rathbone Hotel · 1976
About Improved Sound Limited
- ORIGIN
- Nürnberg
- FORMED
- 1961
- GENRE
- Rock