Mosey music is a study in contrasts. There's glitz and grit, reveling and wallowing, wretchedness and showmanship. Mosey music's pioneers wore their battered hearts on sequined sleeves. From Bakersfield to Galveston, the legends traded their tragicomic highs and lows for gold records and white Cadillacs. But that was then; the days of Buckaroos, Nudie Suits and various Hanks are over, save for the museum displays. To quote a George Jones title track, "Who's Gonna Fill Their Shoes?