Joe Monzo's JustMusic software application utilizes lattice diagrams and other graphs for the composition, recording, performance, and analysis of microtonal music.

map ratios to the keyboard: step-by-step instructions

1.	go back to the little toolbox and click on the button with the picture of the keyboard.
2.	when the keyboard window opens, click on the "Edit" button (which looks like a hand with a pen writing on a notepad).
3.	either click on a key on the keyboard window or press the key on the keyboard, and a blank editing window will open.
4.	use the selection box above the editing area to select "play"; it will put the word "Play" into the editing area. or you can just type the word "play " (with a space after it).
5.	click on a lattice-point in the lattice window to insert that ratio into the editing area, or simply type in a ratio as a fraction (with a space after it).
6.	use the selection box to pick a volume; for experimental purposes "mf" will suffice. or you can type "mf " (with the space).
7.	type in a duration; i suggest simply using "1 ". (with a space) to start off. after getting some experience, you may want to try using other numbers.
8.	select or type "sec". after getting some experience, you may want to try "msec" (milliseconds).
9.	click the "x" in the upper right corner of the editing window to close it. a message will appear which says "This script has changed. Do you want to save it?". click "Yes".
10.	repeat steps 3 thru 9 for other keys on the computer keyboard.
11.	when you're finished mapping ratios to the keyboard, click on the keyboard-window-button which looks like a loudspeaker with a music note. now you can play your monophonic just-intonation computer keyboard!

when you click "x" to close the keyboard window, it will ask you if you want to save it. you may create a filename to save this mapping, and then later, from the keyboard window, you can simply "File|Open" the .jmk file which contains the keyboard mapping, and play to your heart's content.

updated:

2002.12.5