I am sure I'm not the only person here who gets different feelings
about different keys. G always feels fairly stable, A is a bit more
exciting, Em is darker than Am , and so on.
When playing an A minor tune I wrote for nsp's on the piano to see what
harmonies it wanted, I was
This makes a lot more sense on a mean-tone tempered instrument like NSP,
than on a notionally equal-tempered one like a piano.
Different keys do have perceptibly different intervals between the various
degrees on NSP,
so G-d is pretty true and E-B is on the flat side;
but on a piano a fifth is