I heard a song titled "Its a fine fine day for a reunion (or something along those lines)" by Tony Carey and found the bass line interesting enough to pluck away at it some tonite. And some theory related questions came up. The song seemed, at first, to follow an Fm progression, but I'm sure the song is in the key of Ab. Which brings me back to the topic. The sixth (vi)degree of any scale is that scale's "relative minor." What is the true significance of that statement (as simple as you can describe it please!) and how can I use it to be a better bass player?