Leaderboard

http://en.wikipedia....i/Nonchord_tone Since it seems from your OP that you don't know about these.

This is a huge topic ... and the advice you got sounds like something from eHow - hopelessly topical to the point of useless. Here are some pieces to provide you with ideas Perotin Machaut http://www.youtube.com/watch?v=bZxAqWV7a0A Lassus Schutz (very opening and cadences for ideas of how often to change the harmonization) Bach Samuel Sebatien Wesley Faure Schoenberg - late Messaien Ligeti Hope this answers your question