# Tonal Music And Feeling

The numerical proportions like chords and rhythms of tonal music
and feelings are isomorphic. So what you feel alone gives you enough
understanding of the mathematical structures. You can trust your
feeling to understand tonal music.

But they are not naturally isomorphic. The same proportions give
you slightly different feelings at different times. Though those
preserve the same structure. This makes the room for performances.

So it is good to start with your feelings as a base. Make them
correspond to the specific numerical proportions to generalise.