I’ve been working on this, but am not quite to the point of officially recommending things to buy.
The main problem is separating USB power from data- even the powered CCK doesn’t supply nearly enough juice to run Play or Play+.
I bought a whole bunch of “on the go” adapters that included a separate power input, and they were all basically useless. AUM would sometimes see Play (but not Play+) in the MIDI device list, but even then it didn’t actually work.
Elektron Overhub running with a wallwart at least sort-of works. I only have one night on this setup, and I saw some weirdness that I haven’t nailed down yet- hence my reluctance to recommend it yet. There are at least two versions of Overhub, and I don’t know if that’ll make any difference here. Also, finding a wallwart that works with Overhub is a bit of a challenge. This one seems good so far:
The next thing I’m going to try is a 1010music adapter that was specifically designed to do exactly what we need, but it is USB-B. So it’ll require a bunch of adapters for USB-C.
I am using a Polyend Play (minus ) and have it send MIDI successfully, using the UNI 8-in-1 adapter, which is one of the few ones, which work with the iPad beside the Apple one. One thing though: It works with the USB 2.0 port, not the USB 3.x port, which is weird but whatever.
Obviously no confirmation if this would work for audio as well, but then again, why wouldn’t it, if MIDI via USB works. Maybe this helps.
the fact is not the Apple C C kit but that the Play needs more power that is enough only with the USB C Ios devices. As we previously talked about here in the backstage. So lightining IOS devices won’t work with Play.