I'm sure this exists somewhere, but I don't know where: is there a handy chart or spreadsheet that compares the propers of the Extraordinary Form to those of the Ordinary Form? And/or one that indicates where they correspond?
If you want to see one Sunday/Feast at a time, I've been busy at CPDL. What would be nice to have is an index of titles with assignments in both rites: it may take a little extra work as the Solesmes indexes only list the first appearance of chants, but I've been piecemeal adding info to text pages like Dexetra Domini. Help & corrections always welcome!
This Ordinary Time page at CPDL might be of some help, as it gives, for each Sunday in OT, the corresponding source for Tridentine propers, as well as Anglican Use propers 7 (OT 12. Pentecost VI) through 29 (Christ the King).
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