This is freaking fantastic! It's so hard to go wrong with this. It's simply because it's the classic Mario theme done in the style of a concert. I don't know if that's the same as a concerto, though. I feel like I can just see you playing the piano in this. I have a piano at home, too.
It's also great to know this is the first of many parts! I guess the audio portal has a limit on how long a song can be. The longest I heard here was ten minutes. It's great to hear so many of the Mario songs here. It was a great idea to put them all together in this. Mario and piano music forever!