PAUL MARK/"ROADSIDE AMERICANA" (Radiation 5851) An all-acoustic guitar, no-vocals set from New York-based guitarist Paul Mark combining elements of country blues, ragtime and old-timey Americana. The sound marks an introspective U-turn away from the roadhouse uproar of Mark's root's rockin' band, "Paul Mark & The Van Dorens." This solo effort is a beautiful and quirky departure that's oddly rhythmic and sweetly melodic. After fronting Paul Mark & the Van Dorens for ten years, who'd a thunk the wild-eyed front man would head for the tranquility of the backwoods?