One of my go-to records for set up and dialing in is a standard issue early pressing of Janis Ian’s Between the Lines- has lot’s of the stuff you’d likely use to check sound- female voice, strings (real), some orchestral parts, some acoustic, some deep bass and a lot of variety among the tracks. I have a test approval pressing that I acquired and it doesn’t sound any different than the standard issue Columbias from the original era of release. RL mastered it originally. It's a good sounding 'standard' record, nothing "audiophile" about it, so it's a better reference than something that is spectacular for the purposes of set up.
