MIDI files:

• 01-byrd--mass_a_3---0-score-1.midi
• 01-byrd--mass_a_3---0-score-2.midi
• 01-byrd--mass_a_3---0-score-3.midi
• 01-byrd--mass_a_3---0-score-4.midi
• 01-byrd--mass_a_3---0-score-5.midi
• 01-byrd--mass_a_3---0-score.midi

Num	Name	Cleffing;
1	cantus	part in treble clef
2	tenor	part in alto clef
2	tenor	part in octavated treble clef
3	bassus	part in alto clef
3	bassus	part in bass clef
3	bassus	part in octavated treble clef

• Aggregated parts for viols (alto clefs, no octavated treble clefs)
• All aggregated parts (may include both alto and octavated treble clefs)
• Aggregated parts for recorder and winds (no alto clefs)

CPDL link: https://www.cpdl.org/wiki/index.php/Mass_for_Three_Voices_(William_Byrd)
IMSLP link: https://imslp.org/wiki/Mass_for_3_Voices_(Byrd%2C_William)