Instrumental Duet Harp,Instrumental Duet,Violin - Level 4 - Digital Download SKU: A0.875799 Composed by Johann Strauss Sr. Arranged by Nandor & Katrina Szederkenyi. Romantic Period,World. Score and parts. 6 pages. IStrings #4594619. Published by iStrings (A0.875799). The most well known music from the father of the Waltz King, Johann Strauss Sr.