What selections do you play when showing off your system to others?

Nora Jones Come Away With Me

I agree that we should invite them to bring their own stuff and/or select their own play queque.  It's the only way the music will get up close and personal to them.

But. I have to shamelessly admit that I take their keys away so they can't leave the premises until I get to play:

The King's Singers - Hard Days Night

Carole Horne - Noboby Knows

SRV - Tin Pan Alley

I have voice control in my streamer, have them talk into the remote and it plays whatever song they say. It’s a blast as we pass the remote around the room calling out songs.

I agree with the sentiments written by @millercarbon and others: let the listener choose. If a music selection is not increasing brain [dopamine], your guest will not enjoy the listening session. Worse yet, if they actually dislike the music playing, they will find an excuse to leave the room and quietly, or openly, question the wisdom behind your expensive hobby! If it was just about the sound quality, I wish I could play, “The Power And The Majesty” recording of the steam train! I heard it once, over 40 years ago, at an audio store in Richmond, VA. Have a great day!

Temptation - Diana Krall

Spooky - David Sanborn

On the Beach - Chris Rea

I Can't Tell You Why - Diana Krall

The Look of Love - Diana Krall

A Venture - Yes

It Keeps You Runnin - Doobie Bros