Karl Fruh is listed in the credits for the following albums:
| Year | Artist | Album | Role |
|---|---|---|---|
| 1974 | Nancy Honeytree | The Way I Feel | Cello |
| 1977 | Phil Keaggy | Emerging | Cello |
| 1995 | Phil Keaggy | Time 2 | Cello |
| 1995 | Phil Keaggy | Time 1 | Cello |
| 2000 | Phil Keaggy | reEmerging | Cello |
