The unpublished manuscript shows dual authorship Nicola Porpora and Giovanni Costanzi.
It is not possible to establish the share of participation of each of them.
No.1 in C-dur
1. Amoroso
2. Allegro
3. Tempo giusto
4. Allegro
No.2 in g-moll
1. Affettuoso
2. Allegro
3. Adagio
4. Allegro
No.3 in G-dur
1. Adagio
2. Allegro
3. Adagio staccato
4. Allegro
No.4 in H-dur
1. Adagio e staccato
2. Allegro
3. Adagio
4. Allegro staccato
No.5 in c-moll
1. Adagio
2. Allegro
3. Adagio
4. Allegro
No.6 in G-dur
1. Adagio
2. Allegro
3. Largo
4. Allegro staccato