Where can I find piano adaptations of classical concertos?

[complexfreeformd2r]

J N Hummel - Piano Concertino in G Major, Op. 73, 3rd Mvt 钢琴协奏曲

I enjoy the piano adaptation more. I feel that the piano adaptation is akin to an acoustic version of a modern song. Plus, in both these performances, it's interesting to listen to the differing interpretations of the accompanists.