Instrumental Duet Flute,Instrumental Duet,Oboe - Level 4 - Digital Download SKU: A0.740663 Composed by Peter Ilyich Tchaikovsky. Arranged by Ellen Macpherson. Concert,Sacred,Wedding. Score and parts. 2 pages. Ellen Macpherson #5710681. Published by Ellen Macpherson (A0.740663). Tchaikovsky Cherubic Hymn 1 - arranged for Flute and Oboe Duet.