The most influential such orchestra was called the Rashidiyya Orchestra, led by violinist Muhammad Triki. Rashidiyya Orchestra used a large chorus as well as contrabass, cello, violin, nay, qanun and 'ud sharqi, and followed the developing rules of Arab musical theory and notation. The thirteen surviving nubat were created during this time, distilled from the highly divergent folk forms still in use. Western musical notation was used; along with the popularization of recorded music, the use of improvisation quickly declined. These changes helped to popularize the malouf, though not without critics, and gave the music a reputation as classical art music.