Hey! Here is a link to my latest jam in Koala Sampler. I spent a lot of time making the Synth Drums 5 patch in miRack to produce the sounds. I also spent time in creating a companion patch to make it easier to edit the sounds while using AUM on the iPad solo, no other MIDI controllers besides the patch in miRack. I have not taken the time to try any other synths, hardware or software, but I think it will work for that as well, with a few tweaks.
The links to all the patches used in miRack are there and the Synth Drums 5 patch is fairly well documented. If you open the companion patch, you should be able to see how I layer everything out with the two MIDI Controllers used to edit the Synth Drums 5 sounds.
Patches:
Synth Drums 5: Synth Drums 5 | Patchstorage
Synth Drums MIDI Out Controls: Synth Drums MIDI Out Controls | Patchstorage
Random Graphics patch (used in the video); Random Graphics | Patchstorage