more on recitals:

[bloke]

Within roughly one second of the stage-entrance applause and bows ending, the music should commence.

no "Howdy, y'all", no thanks for coming, no discussion of the piece (if needed: in the program notes), no nervous dad-jokes...MUSIC.

The first phrase of the first piece (which makes the largest impression) should be practiced until it cannot possibly be performed with any flaws, including as many possible run-throughs in front of people who might cause worry or self-consciousness.

Playing slightly flat is always better than playing slightly sharp, as sharp never sounds "slight"...and - assuming a piano accompaniment" everything south of A above middle C - on a properly-tuned piano - is flat.

bloke "Who just clicked away a live stream, as - several minutes after the performers appeared - there continued to be yattering, and - when there finally was music - it was sharp, and the second pitch - in the first piece programmed - was not approached cleanly."

At least, this person was not hovering over their music stand.