The CM-Panion, by Gajits Music Software, was an Amiga editor which worked with the MT-32. The utility was predated by a pack called "MT32GS", released by Mike Cornelius in 1992. Despite this, compatibility with GM is still limited by the lack of parts 9 on the MT-32, 16 per GM specification and reversed panpot compared to MMA MIDI specifications. 64 of the 128 patches the limit of possible variations are completely new or modified sounds, with additional sounds having been added to drum channel 10. However, the MT-32s melodic parts can be shifted down to respond to channels 1~8 using a button combination or through MIDI system exclusive messages, enabling improved compatibility with non-MT-32-specific MIDI sequences.Īdditionally, in 1993 Roland released the "GM2MT" SysEx pack, which can be used to reprogram the MT-32 and compatibles to match General MIDI specifications as closely as possible. By consequence, MIDI files using the popular channel 1 or the other channels 11~16 cannot have those parts played on the MT-32. The MT-32 by default assigns its parts 1~8 and Rhythm to respond on input MIDI channels 2~9 and 10 respectively. With 32 partials available overall, polyphony depends on the tonal complexity of the music, and 8 to 32 notes can be played simultaneously. Sounds are created from up to 4 partials which can be combined in various ways including ring modulation. Because of the absence of a piano attack sample, it cannot play a convincing acoustic piano sound.
Successors see below added a library of 33 sound effects.
It also features a digital reverberation effect. The original MT-32 comes with a preset library of 128 synth and 30 rhythm sounds, playable on 8 melodic channels and one rhythm channel. Samples are used for attacks and drums, while traditional synthesis assures the sustain phase of the sounds. Like the Roland D-50 Linear Synthesizer, it uses Linear Arithmetic synthesis, a form of sample-based synthesis combined with subtractive synthesis, to produce its sounds.
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