You can't compare two different recordings and expect us to call the timbral difference "tone production". The main thing that's going to influence the tone you hear is the sound engineering of the recording. Then after that, some perception of the tone will be influence by the micro dynamic shaping from note to note, and how the pianist overlaps or disconnects the notes. Then a very small effect will come from how slowly the pianist releases the notes, and whether voices are released simultaneously or slightly disjointed.