One Moment in Time: Live in the USA (2 Lp's)For Robin Trower, stage and studio are two sides of the same coin. If you've followed the seven decade career of the award winning British bluesman, you'll know every song on One Moment In Time: Live In The USA. But unless you've pushed your way to the front of his sell out shows, you've never heard them like this before. "I'm a different player on the stage," considers the 80 year old. "It's almost impossible to get to that point in the studio. It's