PRINTED MUSIC
My big question is how did they "Type Up Printed Music" in the 30's and 40's. It may have bee hand written but you can see the newspapers use to set up each individual character and slide them to hang together before printing.
I actually remember reading they did the same thing but would do several 'layers' in order to get all the information able to read.
Engraving process
http://parlorsongs.com/insearch/printing/printing.php
This makes sense to be able to copy the music by engraving so that there is more than one original and the musicians can all get a copy but this is not "Type-Set" like I've seen on old music.
I read that copper plate etching was also the most promising technique but the print will be reversed and also the image will be backwards!
