Instrumental Duet Euphonium,Instrumental Duet - Level 2 - Digital Download SKU: A0.960378 Composed by Jasmine Brown. 20th Century,Instructional,Standards. Score and parts. 3 pages. Jasmine Brown #6341227. Published by Jasmine Brown (A0.960378). A little piece for 2 euphoniums I wrote a while ago, would be ideal for beginners looking for fun repertoire to play together.