
I switch to live mode and assign organ, trmpet, sax, and trumbone to the respective track channels. In Song mode, MTS playback triggers all four tracks to generate sound from Sample Tank, but all four tracks play the same sound, as selected in Sample Tank.

Sample tank has two modes, song mode (receives on omni, but is multitimbral) and Live/MULTI (receives on assigned channels and is multitimbral. In the instrument selection pane, I chose Sample Tank as a virtual MIDI INSTRUMENT, opening the App and assigning it to each instrument pane. Of course, since my iPAD PRO is not currently midi interfaced to any external MIDI instrument, playback of the 4 tracks yields no sound.all exactly as expected. My preferences default MIDI intrument is External Instrument, so each effect window shows EXT, and opens to an instrument pane that indeed confirms my track channel numbers, and allows me to change them. I copy it into a MTS NEW SONG via pasteboard, opening 4 tracts appropriately named. mid file with four midi tracks, organ (ch 3) trumpet (ch 1), sax (ch.3) and trombone (ch. ANY SUGGESTIONS ON HOW TO SET UP MTS TO PLAYBACK MIDI FILES WHICH ARE ON THREE DIFFERENT MTS TRACKS (PRESUMEABLY EACH ASSIGNED TO DIFFERENT MIDI CHANNELS) AND OUTPUTTED INTO THREE DIFFERENT SOUND GENETATORS (two on-board and one an external MIDI DEVICE)? However, if I use Audiobus with Module, I am able to generate sound from that app on its assigned track, but then I lose sound from the other track which is IAA LINKED TO SAMPLE TANK. Module is not multitimbral but it does show up in MTS as both an IAA Instrument AND a VIRTUAL Midi instrument, but it generates sound from neither. Related is problem #2: Sample Tank is multitimbral but I can only load it into any one MTS track at a time (either as an IAA instrument app, or a virtual MIDI App via audiobus).

This is important because I will be playing these three different MIDI tracks simultaneously through two different on-board sound genetating apps (Sample Tank CS AND KORG MODULE) and one external MIDI KEYBOARD (a Kurzweil PC1x). My first problem is that for the life of me I can't figure out how to assign different MIDI output Channel numbers to each track. mid files which I have separated into three different tracks in MTS. I am having difficulty trying to playback some. Obviously I doing some MIDI recording ON MTS for ipad and I'm much more comfortable recording and editing audio waveforms.
