The sarod is a stringed musical instrument, used mainly in Indian classical music. Along with the sitar, it is the most popular and prominent instrument in Hindustani (northern Indian, Bangladeshi and Pakistani ) classical music. The sarod is known for a deep, weighty, introspective sound, in contrast with the sweet, overtone-rich texture of the sitar, with sympathetic strings that give it a resonant, reverberant quality. It is a fretless instrument able to produce the continuous slides between notes known as meend (glissandi), which is important to Indian music.