Demo/Autoplay
Here's something I bring up every chance I get. A huge huge HUGE improvement would be if the Demo/Autoplay feature had an option to send its notes as MIDI events back to the user's piano. The PG app's internal piano would of course be turned off in this case.
This would allow the user to hear their own piano tones instead of the PG app's synth, and eliminate the latency/echo issue when playing along with Autoplay (which is even worse now in the beta version). This would benefit all users who use the sound of their own keyboards, which I suspect would be most users. Those using MIDI controllers without built-in sounds and speakers wouldn't be able to use this directly, however, I would hazard a guess that most people with MIDI controllers have VSTs on their computers and could route the Demo/Autoplay MIDI events to their VSTs.
Acer Aspire AX3390 Windows 10