Rock of Ages Cleft for Me (String Quartet) Sheet Music for String Quartet 1. Solo Instruments: (Violin 1, Violin 2, Viola, Cello) 2. Full Score B-Major Tune: TOPLADY, Thomas Hastings 1832 Instrumentation: String Quartet Type of Score: 4 Solo Parts, Full Score Difficulty Level: Advanced/Professional Arranged and Produced by Viktor Dick