Composition
* New choral works published by Donemus: When David heard, Psaume 122 and Alleluia.
* Premiere performances of Alleluia by Graces & Voices
* 10 Dec: premiere performance of God be in my head by Cappella pro Cantibus, Oegstgeest
* New work for Overijssels Kamerkoor: A Clear Midnight (Whitman)
* New work for soprano Bobbie Blommesteijn: Vues des Anges (Rilke)

Musicology
* New article on the Utrecht Pontificale in the upcoming Tijdschrift van de Koninklijke Vereniging voor Nederlandse Muziekgeschiedenis, 2023 edition
* New article on the 'quilisma' sign for Plainsong & Medieval Music (Cambridge), 2024 edition

Gregorian chant
* Lof en Luister: edition (37 chants including extensive introduction) of the rediscovered medieval Office of St. Jeroen of Noordwijk (Attwater Books)

* Upcoming publication (Jan-Feb '24) on chant in the Netherlands with Verloren Publishers
* Transcription of the Office of St. Walburga for Walburga's Church, Zutphen
* 2024: starting as contributor for Dutch sources to CANTUS, the largest international database for plainchant