Resources for medieval musicology and liturgy
Thanks, David. There's certainly careful marking of .p. and .i. in Per quella, but I wonder what its value is for comparative work given it is a unicum. There's also the fascinating possibility that sources like Man reflect the late reforms advocated by Prosdocimus, but again I can't recall anyone looking at this apart from a few delightful but short studies in Italian on the "ligature parigrado".
And, yes, for you of all people, I ought to be a little more careful treading around the question of Inperial's ascription considering I am writing about it at the moment!