| Title | Parts |
|---|---|
| Minimal Improvisation. Organ | |
| Fantasy on Von Gott will ich nicht lassen. Organ Bert Matter. Henrick Bader orgel. St Walburgiskerk Zutphen |
|
| * Improvisation in minimal style on Nun komm der Heiden
Heiland. Organ and female voices Bert Matter. CD Stichting Henrick Bader orgel. St Walburgiskerk Zutphen. 1991 |