31 Dec
2021
31 Dec
'21
12:49 a.m.
On 12/30/21 14:38, Jeanette C. wrote:
thanks for your quick reply. -- Yes, simple mapping of one MIDI note
to a frequency is easy, and the environment in which I work offers
built-in converters for that.
But, how to best quantise chromatic notes to a given musical scale
like C minor or B Dorian? I would probably need some method to do it
for both MIDI notes and in frequencies.
Chromatic representation has several harmonics. The lowest harmonic
defines a basic note, higher harmonics (2X, 3X, etc) depend on what
instrument is playing, and by themselves don't define notes.
Mapping is strictly logarithmical, i.e. log(F) would have notes equally
distributed. One note and other note begins in the middle of such
interval. The rest is simple math.
Yuri