Michael Hedges’ “Aerial Boundaries,”
Jeff Beck “For We’ve Ended As Lovers,”
El Ten Eleven “Thinking Loudly” and/or “Fanshawe”
King Crimson’s “I Talk to the Wind,”
Nora Jones “Come Away with Me.”
All on vinyl, all original pressings, are just a few songs I use every time I “audition” a new piece of audio gear for just those elements you mentioned.
I’ve listened to each probably hundreds of times. I’m NOT a musician - I did take drumming lessons for a few years from a 92 year old Jazz drummer though - but I can appreciate the compositions, the complexity, the PLAYING details, how the instruments are used, how they “move me.”
No, it’s not “classical music” - As much as I enjoyed Mozart, Bach (JS as well as PDQ), many other Baroque-period composers growing up, the audio mileau I’m more familiar with is rock-jazz and I’m not a music snob. I mean, Mozart and his contemporaries didn’t leave any LP’s or HS audio tapes around to compare and every player since imparts their own flavor upon those compositions.
I like audio gear to NOT sound like anything, just as neutral as possible, within my budgetary means.