MU3100 Class Slides Unit 4 Systems of music notation were the only way to communicate musical ideas before the technologies of recording and broadcast had arrived in the early 20th century. Consequently, these notational systems helped shape and drive music’s evolution. Click 4 Textbook Return to Table of Contents Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Tumblr (Opens in new window)Click to email this to a friend (Opens in new window) Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14