Which type of piano rolls recorded a live pianist to capture the changes of tempo and were produced purely for listening

In most modern digital audio workstation software, the term "piano roll" is used to refer to a graphical display of, and means of editing, MIDI note data; as well as entering the pitch, length and velocity of notes manually, instead of recording the output of a keyboard or other device for entering note data.

true because it is true

i think it is d but idk