n-nd-n-nud-nd-nd

Contains 2 unique differentiae
Diff. ID Melodic transcription Mode Saeculorum Amen No. of mss. Sort ascending
20h 1--h-hg-h-hjh-gf-ed--4 Mode 4 1--h-hg-h-hjh- -gf-ed--4 2
20a 1--h-hg-h-hjh-gf-edd--4 Mode 4 1--h-hg-h-hjh- -gf-ed--4 1