Score: 24-byrd--infelix_ego----0-score.pdf
MIDI files:
| Num | Name | Cleffing; |
| 1 | superius | part in treble clef |
| 2 | medius | part in alto clef |
| 2 | medius | part in octavated treble clef |
| 2 | medius | part in treble clef |
| 3 | contratenor | part in alto clef |
| 3 | contratenor | part in octavated treble clef |
| 4 | sextus | part in alto clef |
| 4 | sextus | part in octavated treble clef |
| 5 | tenor | part in alto clef |
| 5 | tenor | part in bass clef |
| 5 | tenor | part in octavated treble clef |
| 6 | bassus | part in bass clef |
CPDL link: https://www.cpdl.org/wiki/index.php/Infelix_ego_-_Quid_igitur_faciam%3F_-_Ad_te_igitur_(William_Byrd)
IMSLP link: https://imslp.org/wiki/Infelix_ego_(Byrd,_William)