Ed Foote schreef:
> [...] The sensation of leaving a pure key, going into something more
> "active", often feels like the floor dropping, and things getting
> spread out.
> I have often thought of it as leaving the firmer foundation.
This seems to me like the third dimension. The second would be
intervals, analogous to distances between tones. A single dimension
would be a single tone - I suppose a sine wave, since harmonics already
I'm not quite sure where this is getting us....