The first assignment is to make a looping sequencer controlled by a "data" window. A very simple kind of structure will do (athough you'll probably find you want to add stuff.) Here is the way a simple one might look:

The things you have to do to get this to work are:

• make a template window with a "struct" defining the data you want to use and various drawing commands (such as "drawpolygon") so it is visible.
• You'll have to make the first datum using the "append" object. Perhaps you should leave it around in a subwindow so we can see how you did that.
• The "struct" should contain at least an "x" and "y" element so the data can figure out where to get drawn on the screen.
• Make a window named something revealing like "data", and put 8 or 12 (or 13 if you prefer) data in it.
• Now make a sequencer. There should be clear "start" and "stop" controls, as well as volume, on the main window. THe sequencer itself should be neatly tucked away in a subwindow. It should go through the data in sequence, and detect automitically when it hits the end to loop back to the beginning.
• Better send a message to "sort" the data window each time the sequencer loops. Sorting takes very little CPU time.
• get some parameters out of the data, such as pitch and loudness but preferably at least three of them, and send "packed" lists to a separate subwindow that is the synthesizer. This needn't be more complicated than the one I showed in class for example.
• tune it so that something pleasant comes out...

Some tricks for making random decisions will be revealed April 5.