Instrumental Duet B-Flat Clarinet,Instrumental Duet,Violin - Level 3 - Digital Download SKU: A0.1137219 Composed by Hummel, Johann Nepomuk. Arranged by Nick M Lacanski. Romantic Period. Score and parts. 9 pages. Theupperstaff #737418. Published by theupperstaff (A0.1137219). The Allegretto Grazioso is tenth piece in a collection of compositions for piano titled Little Pieces for Pianoforte. Thank you for taking a look.