Pietro Nardini was the most important pupil of Tartini regarding both violin playing and composition. Like his teacher, he attached special significance to the beauty of sound and the -suitability for singing, as is shown by reports of his contemporaries. Leopold Mozart, for example, wrote in one of his letters that he ''had heard a certain Nardini and that there could not be heard anything more beautiful in the tonal beauty, purity, harmony and in the singable taste.'' The two concertos in A major and F major consist of three movements with the traditional tempo order quick-slow-quick, each movement giving the soloist the opportunity to play a solo cadence.