| Date | Location | Name | Instrument |
|---|---|---|---|
| 1973-07-06 | Congrès Montreux | John Klemmer Quartet | Electric piano |
| 1979-07-22 | Casino Montreux | Al Jarreau | Keyboards |
| 1981-07-14 | Casino Montreux | Al Jarreau | Keyboards |
| 1981-07-14 | Casino Montreux | Al Jarreau and Randy Crawford | Keyboards |