Claude says:You kept coming back to "Ain't No Mountain High Enough" across its different versions—that duet with Tammi Terrell has a way of doing that, built on the kind of effortless groove and conviction that defined Marvin's early-to-mid '60s Motown years before he got heavy and experimental. This compilation landed in your rotation back in 2017, a greatest-hits primer that clearly worked best when you needed that particular strain of soul: smooth, romantic, undeniable.