The reformed satar, also known as the alto satar, is a Uyghur bow-stringed musical instrument. Popular in Xinjiang Autonomous Region.

In the late 1950s, the Yidibok Musical Instrument Factory in Urumqi, Xinjiang, with the assistance of Uyghur music workers, produced the reform satar. The body of the instrument is still made of mulberry wood and is slightly shorter than the traditional satal, with a total length of 120 cm. The sound box is larger and made of eleven wooden slats that have been soaked, baked and bent before being glued together. The front is covered with an arched fish scale pine sheet to resist the pressure of the strings. The widest part of the piano case is 20 cm and the thickest part is 14 cm. The piano bar is slightly shorter, narrower at the top and wider at the bottom. A layer of fretboard is added on the front, and the frets on it are also changed from silk strings or tendon frets to fixed plastic frets. Some also added wooden tailpieces. There are thirteen strings, the main playing string is a cello string, tuned to c, and the thirteen independent ringing strings are tuned: c, c, d, e, g, a, c1, d1, e1, g1, a1 , c2, range c-c2, has two octaves. The tone is bright and thick. At the same time, a high-pitched satal was also made, with a total length of 87 cm, and the sound box and other parts were reduced accordingly.

The Reformed Sattar can be used for solo, ensemble or accompaniment. It plays harmoniously with the treble satal in a band ensemble or accompaniment and has good sound effects. There are not many solo repertoires, and the music of "Muqam" is often used. The more famous ones include "Muqam Intermezzo" and so on. In the band ensemble, he often accompanies "Mukam" and "Mexirop". When playing "Mukam", most people start with the "plucking string" method, and only use the bow to accompany the song after the song appears. When it plays the Sanban prelude of "Mukam", it mostly uses long bows and continuous bows, with melodious tones and free rhythm; while when it uses short bows and fast bows to play the music of "Maxi Ruop", the melody is cheerful, warm and lively, Rich in local color.