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                  MT-32 Timbres; An Explanation of Their Use
                              by Doug Fetter
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For those of you who are thinking about this collection of Timbres for
the Roland MT-32/LAPC but are not familiar with how to hear them once
they have been loaded, I provide the following help. When you order the
complete set, you will receive additional text files providing further
explanations of the synthesizer's internals and details of how to make
use of these timbre banks.

Once a timbre bank has been loaded into the MT-32's memory, the unit
must also be told to select these timbres via the appropriate patch
numbers. For this reason I have included another SYSEX file in this
sample, RAM-BANK.PAT. Once this file has been loaded into the MT-32,
the unit will understand that patch selections it receives over the
MIDI interface are to address the newly loaded RAM based timbres and
not those contained in PROM. Don't worry however, nothing loaded into
the MT-32 is permanent, as soon as you reset the unit or power it off
& on it will have forgotten all of this data and will once again be
pointing at its own PROM based timbres.

So go ahead and give it a try; direct the LIB-32 program to load the
RAM-BANK.PAT file. It will recognize that it is not an MT-32 timbre bank,
but, detecting that it contains SYSEX data, it will prompt you to see
if you would like this file sent out of your PC's MIDI interface. With
RAM-BANK.PAT loaded into the MT-32, load up and output any of the four
sample timbre banks (those with the .TIM extension). Now, to hear the
newly loaded timbres, send a patch change from your controller/keyboard
or from you sequencing software and then play away.

NOTE:  Don't try to select the new RAM-based timbres via the MT-32's
familiar SELECT/VOLUME control, this only selects the PROM-based sounds.
Also, since the MASTER VOLUME - 5 button combination to shift the MT-32 
channels down one to be 1 to 8 resets the MT-32 back to the PROM based 
defaults, do this operation before loading the RAM based timbre banks 
and the RAM-BANK.PAT file.

                                       ---Doug

                   Copyright (C) 1991 by Douglas L. Fetter
                            All Rights Reserved.