Okay, then there's Crosby, Stills, Nash & Young, Déjà vu (Complete Record), maybe that's the best ever.

Harmonics are better in the CSN album, but there's something about Neil Young juxtaposed with those harmonics in the second album that is just outstanding.

They're both great albums, although the Déjà vu YT audio is very noisy (almost like vinyl), the CSN audio is much cleaner.