Notes Definition and 202 Threads

i've been trying to find a good set of lecture notes for independent study on the subject. I wen to the one in the thread on differential geometry and tensor calculus at people.hofstra.com, but it went offline while i was viewing it and i have had no luck reaccessing it.

This is just to defer a discussion that began in the Religion forum concerning https://www.physicsforums.com/showthread.php?s=&threadid=429&perpage=15&pagenumber=3". It seems there are two approaches: the seven note diatonic scale, i.e., do, re, mi, fa, so, la, ti, do, developed by Guido...