midi software and microtonal music

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alt-tuner screenshots, from the manual:

lattice view, with tempering sliders, stretch slider, EDO slider and strength slider

graph view, showing all intervals in the current tuning

table view, similar to the graph view

tapnotes screen, showing alternative notes to tap to

CCs screen, controls what effect each keyswitch or pedal has

modulate screen, controls what interval each foot pedal or keyswitch modulates by

switch screen, controls what tuning each foot pedal or keyswitch takes you to

layout screen, controls the appearance of the lattice

the layout screen also controls the colors of the notes, the menus and the background

rows screen, controls the contents of the lattice

keybend screen, controls how much each key is sharpened or flattened

misc screen, controls midi output mode, etc.

linkages screen, tempers out various commas

rungs screen, defines the fundamental intervals and their keyspans and degrees

keyboard screen, defines the number of keys per octave, their names, etc.

alt-keyswitcher, converts key presses into midi CC #s

keymap, part of alt-keyswitcher, maps one key onto another

==========================Tuning Examples ========================

exploring the meantone spectrum

Werckmeister II (some fifths sharpened or flattened by 1/3 of a pythagorean comma)
The lattice has been made square on the layout screen, and the vertical rung has been set to 7.8¢ with the yellow slider

19-tone meantone graph (19 notes per octave, quarter-comma meantone)

Bohlen-Pierce graph (repeats every twelfth = 1902¢ instead of every octave = 1200¢)

harmonic series graph (harmonics 12 through 24)

pentatonic lattice

22-EDO graph using 24 keys per octave
The lower 12 keys are named A-G and the higher 12 are named 1-7

48 keys keyboard

48 keys tapnotes

alt-tuner flowchart