ARTHUR RUSSELL - Iowa Dream DLPOver the past decade, the visionary musician Arthur Russell has entered something close to the mainstream. Sampled and referenced by contemporary musicians, his papers now open to visitors at the Performing Arts Library at Lincoln Center in New York, and his name synonymous with a certain strain of tenderness, Russell is as widely known as hes ever been. Thanks to Russells partner Tom Lee and to Steve Knutson of Audika Records, who have forged several