Vivaldi was tought to play by his father Giovanni Battista. Because Vivaldi began the journyto become a preist when he was 15, he had to be younger than that.
Antonio Vivaldi plays flute, oboe, bassoon, cello and violin. Vivaldi already wrote more than 500 concertos and 230 of these are strings and instruments.
The solo instrument is a violin.
violin
paganini sarasatie vivaldi
Probably a violin....
Vivaldi wrote literally hundreds of concerti (the Italian plural of concerto). He wrote concerti for solo violin (including the Four Seasons), for cello, for mandolin, for flute, for piccolo, and a number of concerti for combinations of solo instruments.
Antonio Vivaldi
Antonio Vivaldi
Il Sospetto
He was a barber, then later moved on to become a professional violinist. He taught his sons including Antonio Vivaldi to play the violin.
Vivaldi and Paganini were both masters of the violin.
Minuet Four Seasons by Vivaldi