Mathematics is the heart and soul of music… Without question the bar, the rhythm, the proportion of the parts of a musical work and so on must all be measured… . Notes and other signs are only tools in music, the heart and soul is the good proportion of melody and harmony. It is ridiculous to say that mathematics is not the heart and soul of music.
Whoever wishes to write music must outline his complete project on a sheet, sketch it roughly and arrange it in an orderly manner before he proceeds to the elaboration. In my humble opinion this is the best way of all to ensure that each part will demonstrate a specific proportion, uniformity and agreement: for nothing in the world is more pleasing to the ear.
- Johann Mattheson, from Der Vollkommene Capellmeister
Prof. Briggs: "There’s a reason why it was called the common practice. In humbler days, the common practice was practiced, and composers used to actually work things out and compose. Today that rarely exists, and you should tell composers they should go quit when they suck. Don’t clap when it’s bad, don’t play their bad work. Bad is underprepared and classless. Don’t be an enabler of bad behavior."