The walls of the blue room are papered with LP covers; 45 rpm records and CD jewel boxes. Awards and book jackets hang over the desk. A red and white, guitar-shaped neon beer sign casts a dance hall glow. This is Johnnie Allan's office, a spare bedroom in his Lafayette home. The desk is where he's put together three books on Louisiana music, and it's also where he writes some of his songs. Those are his recordings on the wall, and that's his gold record in the frame Over 38 years in music...