David Crosby of CS&N Died Today

I don’t know that because it isn’t accurate. Crosby wrote the music and Stills and Paul Kanter (J. Airplane) wrote the lyrics. CSN recorded it first, two months before Airplane did.

The CSN eponymous album it was on was released six months before Volunteers.
Funny, it seems strange how more people tend to like Airplane's version then CSN original. Then again, its not uncommon for artists, bands, musicians recording cover versions of songs that ultimately become well-known, popular then the originals. Good examples are Whitney Houston's cover of Dolly Parton's, "I Will Always Love You", Johnny Cash's cover of NIN's " Hurt", Joe Cocker pumping up the steroids, speed and adrenaline for Beatles "With a little Help From my Friends".

I know the main three-power-chord guitar riff that starts the song, " Black Sabbath", was outlawed and banned in the Middle Ages by the Church because it was heretical and deemed to be a melody that could summoned Satan at witches' sabbaths, it was nicknamed, "The Devil's Third".