| Artist name | Roles | Recordings |
|---|---|---|
| Polyphony (choir) | vocal | O Magnum Mysterium |
| Stephen Layton | conductor | O Magnum Mysterium |
| The Los Angeles Guitar Quartet | classical guitar | Dirait-on |
| Artist name | Roles | Recordings |
|---|---|---|
| Muknal | finger cymbals, piano | Ave, dulcissima Maria, Les chansons des roses: V. Dirait-on, Nocturnes: I. Sa nuit d'été, Nocturnes: III. Sure on this shining night |