@acresverde I heard one track from Enamoured by chance that caught my attention and immediately flagged the entire LP as an exemplary reference recording.
Additional tracks that highlight system strengths and expose weaknesses:
"St. Thomas" - Peter Bernstein & Guido Di Leone Quartet (Tribute to Jim Hall)
Nicely recorded instrumental jazz piece with ample percussive elements and well-delineated layers of depth that challenge imaging ability.
"Celestial Echo" - Malia (Convergence)
Expansive electronic work with female vocals, delicate transients, and strong, meandering spatial cues that challenge soundstage depth rendering. In a good system, the soundscape should expand beyond the walls of the room without sounding diffuse.
"Dirty Little Secret" - Sarah McLachlan (Bloom - Remix Album)
Sounds almost broken in the beginning, but be patient, and distinct layers at various depths emerge as the track progresses.
"Istanbul" - Various Artists (Divan)
Ambient instrumental electronic track of Middle Eastern flavor with wall-to-wall percussive elements that pop out nicely.
"Good Morning Little Schoolgirl" - Muddy Waters (Folk Singer)
An exemplary stereo recording in this genre from 1964, and far superior to that of notable big acts from the same period.
"Perimeter" - Gidge (New Light)
Powerful, immersive, a showcase track for a large, high-end system and room.
"Fireland" - Andrea Schroeder (Where the Wild Oceans End)
For anyone who doesn't know this one, a live performance brought into one's listening space.