Violin where a stopped note sounds a unison or octave with another (open) string, causing it to resonate sympathetically. Students often use these ringing tones to check the intonation of the stopped note by seeing if it is harmonious with the open string. For example, when playing the stopped pitch "A" on the G string, the violinist could play the open D string at the same time, to check the intonation of the stopped "A". If the "A" is in tune, the "A" and the open D string should produce a harmonious perfect fourth. Violins are tuned in perfect fifths, like
Sintir knuckle side of the index finger and the inside of the thumb. The hollowed canoe shaped wooden body resonates a percussive tone created by knuckles slapping the camel neck top of the body while the thumb and index finger are plucking the strings.The lowest string on the sintir is a drone note and the second string, the highest in pitch, is tuned an octave higher and is never fretted. The third string is tuned a fourth above the drone. The buzzing sound often heard emanating from the sintir is caused by metal rings dangling off of a galvanized metal feather