The Compositional Library
Cantus Firmi from Fux, Palestrina, and historical sources. Bach Chorales for four-part study. Fugue subjects from the Well-Tempered Clavier. The raw material you need, organized and ready to use in your exercises.
Compositional Library — browse and filter
Three Collections
Cantus Firmi
38 cantus firmi from Fux, Palestrina, and historical sources. Each labeled by mode, difficulty, and provenance — ready to use in any counterpoint exercise.
Bach Chorales
A curated set of four-part Bach chorales for SATB study and reduction exercises. Standard repertoire for harmony and voice-leading analysis.
Fugue Subjects
Fugue subjects drawn from the Well-Tempered Clavier and other sources. Use them for answer writing, exposition practice, and stretto exploration.
Mode & Key Filtering
Filter by mode (Dorian, Phrygian, Mixolydian…), key, difficulty, and source. Find the right material for your current exercise in seconds.
Integrated with Sketchbook
Open any cantus firmus directly in the Counterpoint Workshop. The library and the tools are connected — no copy-pasting.
Curriculum-Linked
Library entries link to the lesson that introduced them. Context is always one click away.
The source material for three centuries of composition study.
Cantus firmi, chorales, and fugue subjects — part of the complete Gradus method.