They wrote it in their early days(pre Nicks/Buckingham) and it might even be a contribution from Peter Green or one of the other original members(they've had something like 15 members). Of course, Santana's cover is the version that became famous. BTW, I was told by my grandfather that the "black magic woman" in the song is actually his guitar: a Gibson Les Paul which is, obviously, black.
They wrote it in their early days(pre Nicks/Buckingham) and it might even be a contribution from Peter Green or one of the other original members(they've had something like 15 members). Of course, Santana's cover is the version that became famous. BTW, I was told by my grandfather that the "black magic woman" in the song is actually his guitar: a Gibson Les Paul which is, obviously, black.