Yes of course. Each loop can be affected automatically or manually to a different MIDI channel. When the looper is running, it streams all MIDI data through the outputs with respect of the MIDI channels.
So far, we have three different MIDI modes, each one matching a different purpose:
1) ctrl/seq/synth: the internal synth is running and only 8 MIDI channels can be use at the same time. When you hit the sound button, you navigate inside your internal soundbanks.
2) ctrl/seq: the internal synth is shut down. The sound button allows you to choose which of the 16 MIDI channel you want to talk to and to choose which kind of layout you want to play with (harmonic, percussive, launchpad) on this channel. The multitrack looper is still running and record what you are playing on the channel you have chosen. You can have up to 16 tracks running together. Everything is streamed on MIDI, even the CC recorded when you use the sliders and the motion sensors. This mode is useful if you want to keep the workflow of the du-touch and its internal looper, but you want to use external MIDI synthesizers, be they software or hardware.
3) ctrl: the multitrack looper is shut down. All buttons send MIDI when they are used, and they have no action (unless the settings button, to change mode). This mode is useful if you want to reprogram the behavior of the du-touch externally, in a MIDI software, as there is no more "intelligence" in it.