If I remember correctly, Glenn has said that Joni Mitchell showed him a guitar tuning, and with the new tuning he started composing Best Of My Love. But as far as I know the acoustic guitars in Best Of My Love are in standard tuning. This has puzzled me for years. Did Glenn come up with the chord progression in this different tuning and then adapt it to the standard tuning afterwards? Or is Glenn's acoustic in some weird tuning in the original, although it can easily be played in standard tuning? What was the tuning?