1.6.1 Œuvres pour deux violons, orchestre et basse continue (RV 505-530)

RV 505 Concerto for 2 Violins in C major	RV 512 Concerto for 2 Violins in D major	RV 516 Concerto for 2 Violins in G major
RV 519 Concerto 2 violins, strings	RV 521 Concerto for 2 Violins in A major	RV 522 Concerto for 2 Violins in A major

1.6.2 Œuvres pour deux instruments identiques, orchestre et basse continue (RV 531-539)

RV 531 Concerto for 2 Cellos in G minor	RV 532 Concerto 2 mandolins, strings	RV 533 Concerto for 2 Flutes in C major	RV 534 Concerto for 2 Oboes in C major
RV 535 concerto per due Oboi	RV 536 Concerto for 2 Oboes in A minor	RV 537 Concerto in C 2 trumpets, strings

1.6.3 Œuvres pour deux instruments différents, orchestre et basse continue (RV 540-548)

RV 540 Concerto for Viola d'amore and Lute in D minor	RV 541 Concerto for Violin and Organ in D minor	RV 542 Concerto for Violin and Organ in F major	RV 545 Oboe and Bassoon Concerto
RV 546 Concerto for Violin and Cello in A major	RV 547 Concerto for Violin and Cello in B-flat major	RV 548 Concerto for Oboe and Violin in B-flat major