Carmen McRae's vocal style always struck me as eccentric and occasionally borderline avant garde. For lack of a more sophisticated description, some of her phrasing is kind of weird. That's what I've always appreciated about her.
My selection of the day is her soul-jazz version of "Sounds of Silence". It cooks. It's a slightly psychedelic. Best of all, it features one of her hip/weird performances that at times sounds like when my mom would try to sing along with Simon & Garfunkel on the radio melded with sheer brilliance. Actually, my mom singing along with Simon and Garfunkel on the radio IS sheer brilliance.