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Typed from the Sequential Circuits Model 242 operation manual.
Not commercial...
Files in zip are .p00 format

It needs a Sequential Circuits model 242 MIDI interface.
The program causes your synthesizer [which is plugged into the interface] to 
play a musical scale upward, then downward.
Also it tests the interface itself with a loop-back function, the footswitch, 
and the clock in.
Actually I thought it would be of more use to programmers, since it isn't 
compiled, and the source is commented.
It's a neat thing to have around anyway, if you own an interface.