Nice to see! I see it was compiled about five years ago… I wonder if anyone's done an update.
Folks here should also be familiar with this Google spreadsheet which Aristotle compiled ("Polyphonic Mass Propers for Sundays and Holy Days of Obligation as found on CPDL").
A few months ago I took Aristotle's info on the CPDL Offertories, and ordered them according to the Sundays of the liturgical year (Ordinary Form)… see attached, if anyone's interested.
CPDL has had an online score catalog for a couple of years now (I installed it there on June 4, 2009). It is accessible from the Main Page at CPDL by clicking on "Online Score Catalog, indexed by composers" under the Scores at ChoralWiki section in the left column. Alternatively, here is the direct link:
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