Instrumental Duet Instrumental Duet,Piano,Recorder - Level 1 - Digital Download SKU: A0.720220 Composed by Julie Gaulke. Children,Instructional. Score and parts. 2 pages. Julie Gaulke #26215. Published by Julie Gaulke (A0.720220). This is a round for three recorders, using the notes GABCD. The playable piano part also includes cues for a solo instrument which you may add to the performance.