Piano Quartet,String Ensemble Cello,Piano,Viola,Violin - Level 4 - Digital Download SKU: A0.840284 Composed by Charles L. Johnson. Arranged by Glen D. Lienhart. Folk,Ragtime. Score and parts. 11 pages. Glen D. Lienhart #3514171. Published by Glen D. Lienhart (A0.840284). Grade IV string duet with piano accompaniment. Includes solo parts for violin, viola, or piano.