Standard Lumatone mapping for Pythagorean: Difference between revisions
ArrowHead294 (talk | contribs) No edit summary |
Add note about range and horizontal octaves |
||
| Line 1: | Line 1: | ||
The '''standard Lumatone mapping for Pythagorean-like scale systems''' has a C on the middle of the 5 keys sticking out the very left side of the keyboard, and the C major scale goes horizontally across the keyboard from there. The whole tone goes right-and-slightly-up and the [[diatonic semitone]] goes right-and-down, which implies that the [[chromatic semitone]] (the amount by which ♯/♭ alter pitches) goes up-and-slightly-right. | The '''standard Lumatone mapping for Pythagorean-like scale systems''' has a C on the middle of the 5 keys sticking out the very left side of the keyboard, and the C major scale goes horizontally across the keyboard from there, with octaves perfectly horizontal. The range is just under five octaves. The whole tone goes right-and-slightly-up and the [[diatonic semitone]] goes right-and-down, which implies that the [[chromatic semitone]] (the amount by which ♯/♭ alter pitches) goes up-and-slightly-right. | ||
The name for this general kind of mapping is the '''Bosanquet-Wilson layout'''. | The name for this general kind of mapping is the '''Bosanquet-Wilson layout'''. | ||
Revision as of 09:09, 16 November 2024
The standard Lumatone mapping for Pythagorean-like scale systems has a C on the middle of the 5 keys sticking out the very left side of the keyboard, and the C major scale goes horizontally across the keyboard from there, with octaves perfectly horizontal. The range is just under five octaves. The whole tone goes right-and-slightly-up and the diatonic semitone goes right-and-down, which implies that the chromatic semitone (the amount by which ♯/♭ alter pitches) goes up-and-slightly-right.
The name for this general kind of mapping is the Bosanquet-Wilson layout.
This mapping can be used without alteration for any rank-2 system whose period is an octave and whose generator is a (perhaps tempered) fourth or fifth. This includes Pythagorean, meantone, superpyth, helmholtz, etc. It will provide complete coverage for any edo up to 56 which has a single circle of 5ths, and many multi-ring edos can still be made to work with it by using a non-patent val as long as the generator forms a 5L 2s or 2L 5s mos scale.
Not all notes with four or more flats are shown here; they follow the obvious pattern.