In the spirit of a DAW:
1) Be able to continue editing/notating while playing back, rather than having to stop and then edit/notate.
2) Keystrokes for all Playback Controls, including for the Stop button (hey, it's 2021, folks. :))
3) Easy measure cueing (hot key?) to go to a measure for immediate playback, without having to first "Go" to a measure and then press the Stop button to "cue up." That extra step has never made sense to me.
4) Playback looping, so you can repeatedly audition a section.