Of the more complex instruments, which were perfected and widely diffused at a very early period, we find not only the organ, but a corresponding string-instrument, the ‘gravicembalo’ or ‘clavicembalo.’ Fragments of these, dating from the beginning of the fourteenth century, have come down to our own days, adorned with paintings from the hands of the greatest masters. Among other instruments the first place was held by the violin, which even then conferred great celebrity on the successful player. At the court of Leo X., who, when cardinal, had filled his house with singers and musicians, and who enjoyed the reputation of a critic and performer, the Jew Giovan Maria and Jacopo Sansecondo were among the most famous. The former received from Leo the title of count and a small town;[882] the latter has been taken to be the Apollo in the Parnassus of Raphael. In the course of the sixteenth century, celebrities in every branch of music appeared in abundance, and Lomazzo (about the year 1580) names the then most distinguished masters of the art of singing, of the organ, the lute, the lyre, the ‘viola da gamba,’ the harp, the cithern, the horn, and the trumpet, and wishes that their portraits might be painted on the instruments themselves.[883] Such many-sided comparative criticism would have been impossible anywhere but in Italy, although the same instruments were to be found in other countries. The number and variety of these instruments is shown by the fact that collections of them were now made from curiosity. In Venice, which was one of the most musical cities of Italy,[884] there were several such collections, and when a sufficient number of performers happened to be on the spot, a concert was at once improvised. In one of these museums there were a large number of instruments, made after ancient pictures and descriptions, but we are not told if anybody could play them, or how they sounded. It must not be forgotten that such instruments were often beautifully decorated, and could be arranged in a manner pleasing to the eye. We thus meet with them in collections of other rarities and works of art.