ROYAL MUSIC COLLECTION. Scarlatti (Alessandro). 12 Sinfonias or Concertos; �cominciate al Po Giugno 1715�. Autograph . The score of a numbered set of 12 symphonies for 2 flutes, 2 violins, viola, cello and bass (figured). [See R.M.21.b.15. for separate parts]. Paper. ff. 127.Alessandro Scarlatti, composer: Symphonies: 1715?: Autogr.