
- Music and Poetry in St Gallen: Sequences and Tropes (9th Century) · 2010

- De Machaut: Sacred and Secular Music · 1990

- Music and Poetry in St Gallen: Sequences and Tropes (9th Century) · 2010

- Perotin: Sancte Germane et Viderunt omnes (Ecole de Notre Dame) · 1993