Twaalf Orgelwerken

1. Improvisatie over “’k Wil U, o God! mijn dank betalen” (1944)
2. Paraphrase over “Vexilla Regis” (1949)
3. Vijf polyfone studies over gregoriaanse melodieën (1954/55)
I. Offertorium “Ave Maria”
II. Offertorium “Benedixisti”
III. Offertorium “Reges Tharsis”
IV. Sequentia “Victimae Paschali”
V. Offertorium “Ascendit Deus”
4. Dominica Tertia Adventus – Fantasia post Communionem (1957)
5. Dominica XVII post Pentecosten – Fantasia post Benedictionem (1957)
6. In Nativitate Domini (ad missam in nocte) (1960?)
I. Introitus “Dominus dixit”
II. Offertorium “Laetentur caeli”
III. Communio “In splendoribus sanctorum”
7. Dominica Resurrectionis (1960?)
I. Introitus “Resurrexi”
II. Offertorium “Terra tremuit”
III. Communio “Pascha nostrum”
8. Variaties over Psalm 95 (1962)
9. Variaties over Psalm 150 (1962)
10. Variaties over Noël “Joseph est bien marié” (1978)
11. Tres Hymni (1981)
I. Ave maris stella
II. Ave maris stella (alio modo)
III. Gaude, mater Anna
12. Variaties over “God is mijn lied” (1984?)