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