I had to chuckle when I read Lewn's post. The Johnny Hartman album is called "Once in Every Life" BeeHive BH7012 recorded in 1980. The dealer used the first cut on side two, "For All We Know" to set up my arm/cartridge. This is a fantastic album -sound and music, and one I use when auditioning equipment. It is one of my Island Discs.
Male Vocals: Johnny Hartman, "Once in Every Life", and "Coltrane and Hartman"
Female Vocals: Shirley Horn, "A Lazy Afternoon", and "Horn with Horn"
Male/Female combo: "Ella and Louis"
Also good: Holly Cole, Dusty Springfield, Stacey Kent
Male Vocals: Johnny Hartman, "Once in Every Life", and "Coltrane and Hartman"
Female Vocals: Shirley Horn, "A Lazy Afternoon", and "Horn with Horn"
Male/Female combo: "Ella and Louis"
Also good: Holly Cole, Dusty Springfield, Stacey Kent