HOW TO MAKE AIMDEMO USEFUL
                              or
                   Crutches for Crippleware

   I downloaded AIMDEMO.ZIP from a BBS recently.  I expected 
crippleware, but this one is quadraplegic!  You can only load 
DEMO.INS, and you can't save anything.  You only get to listen to 
AIMDEMO run scales -- you never get to hear the instrument in a real 
musical piece.
   Well, I did a little checking, and found a way to produce .INS
files.  First, run AIMDEMO and load in DEMO.INS.  (If you wish to
start with something other than DEMO.INS, copy it to DEMO.INS before
you run AIMDEMO.)  Try the options, and when you find a sound you
like, hit Print-Scrn to dump the screen to your printer.  Exit
AIMDEMO.  Copy DEMO.INS to another name, say CROAK.INS.  Use a hex
editor like FIXFILE, HEXED, or NU to load CROAK.INS.  Now get your
screen dump.  Ignore the tempo.  MODE and VOICE are one byte each, and
are stored in the first two bytes of the file respectively.  The other
26 parameters are stored as 2-byte values, although they could fit in
one byte.  The MODULATOR parameters are stored at file offset 02h
through 1Ah, in the order listed on the screen dump.  They are
followed by the CARRIER parameters, in the same order.  You will have
to convert all the values from decimal to hex, and remember that the
low byte is stored first.  (If converting to hex is a problem, you
really should not be using a hex editor.)
   At this point, if you are using ver 1.5 of JUKEBOX and COMPOSER,
you need to use BANKMNG to put the .INS into a .BNK file.
   This is not a convenient way to produce instrument files, but it
does work.  If you are serious about creating instruments, and can
spare the cash, buy AdLib's instrument maker.  If not, try this
procedure.
   Note that I do not yet have an AdLib tech manual (it is on order) 
and I figured out the file format strictly from the AIMDEMO screen. 
All the .INS files I have seen are either 54 bytes or 80 bytes. 
AIMDEMO only manipulates the first 54 bytes, so I don't know what the 
the extra bytes represent.
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