Instrumental Duet Alto Saxophone,Guitar,Instrumental Duet - Level 3 - Digital Download SKU: A0.577642 Composed by Diogenio Bigaglia. Arranged by David Warin Solomons. Baroque,Classical. Score and parts. 3 pages. David Warin Solomons #2570763. Published by David Warin Solomons (A0.577642). The manuscript of the work appears to show the composer as Bigi (indeed some editions use this name) but it is now assumed to be by Diogenio Bigaglia. This arrangement (just the first and last movements) has been composed with guitar continuo.