Repertoire
Music theatre
Liturgical music
| Corpus Antiphonalium Officii Ecclesiarium Centralis Europae (CAO-ECE) |
| Hymn Tune Index (HTI) |
| Gesangbücher (Johannes Gutenberg-Universität Mainz) |
| Melodiarium Hymnologicum Bohemiae |
Vocal music
| Motet Project |
| The Aria Database |
| German Folksongs |
| Volksliederarchiv |
| Deutsches Lied |
| Liedtexte |
Instrumental music
| Kenneth Sparr’s Pages |