I saw his channel recently. This guy makes excellent - and very accurate - transcriptions of some challenging songs.
I'm also curious as to how he's recording his piano. I don't see any mics and the lid is closed. It sounds strangely clean and free of performance/mechanical noises, and I don't think the bass notes should be that powerful on a piano that small. It makes me think he might be triggering sampled software pianos. Some of the little things like the note decay, sympathetic resonance and pedal/damper noise also remind me of a software piano.
This recording especially sounds digital: