Oh, blah, the anon comment ending in the slur about Kircher was mine; I was accidentally not logged in. I'm going to take the liberty of repeating it here, with apologies for my clumsiness:
No, actually you're wrong. Keyboard (and solo violin) music couldn't be printed with movable type unless you separated out the parts and printed, more or less, one "voice" (or melody line) per staff (which was sometimes done, but it's hard to read, and for many kinds of music, totally impractical). Keyboard (and solo vln) music typically has chords, a changing number of parts in each staff, and other complications which moveable type couldn't handle.
There was a great deal of typeset music, mostly vocal, but it was almost all one-voice-per-staff.
(Exception: alternative notations, now usually grouped under the name "tablatures", of which there were several varieties, some of which, as in Spain, were developed specifically to allow cheap printing.)
I have to compliment you on your screen name, remembering, however, the words of the musicologist Thurston Dart (who was the adviser to my dissertation adviser), that he was a "surprisingly credible Jesuit."