Back in the day when I worked at General Motors, we periodically used a consultant (Dave Clark - not of the '5' fame, but the somewhat famous audio engineer) who had a great list of tracks for audio system subjective and objective evaluations.

As it turns out, it was also a great list of reference tracks.

The closest thing I can find is Bob Katz' list of dynamically well-mixed and mastered songs. I like some of these songs, so I have made it a point to obtain several on CD.

https://www.digido.com/honor-roll/

There's quite a wide variety of music styles in the honor roll that Bob lists.

Reference tracks also work well for the other side of mixing which is arranging. Taking the time to list out the likely tracks, their processing, when and where they appear in the mix and overall song, is also instructive. This takes some patience to audibly deconstruct a mix and arrangement but always worthwhile.

Someone way back in the thread mentioned Led Zeppelin. I was listening to my 2-CD compliation I have of theirs this past week on some really nice in-ear monitors, and it's funny how many times you can hear a squeak coming out of Bonzo's kick drum pedal. LZ has always been about the feel, however - not so much the sound quality.

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