Vivaldi achieved popularity throughout Europe with his collection Â"LÂ'estro armonicoÂ" op. 3. He wrote the cycle which consists of twelve violin concertos for the orchestra of the Â"Ospedale della PietàÂ" where he was teacher and director for many years. The two fast outer movements from opus 3/3 feature ritornelli combined with more virtuosic solo sections, as was prevalent at the time. This ritornello form gives structure to the movements. It also gives the student who plays both the solo and tutti sections in this edition, the opportunity to vary the returning motives in terms of dynamics and ornamentation. In the short but expressive Largo, distinct quarter notes alternate with patterns of sixteenth across all the strings. This allows the student to practise various bowing techniques.