The tanpura is a long-necked, plucked, four-stringed instrument originating in the Indian subcontinent, found in various forms in Indian music. Visually, the tanpura resembles a simplified sitar or similar lute-like instrument, and is likewise crafted out of a gourd or pumpkin.
A male-pitched tanpura
A woman playing the tanpura, ca. 1735
A pair of female-pitched tanpuras (smaller)
Tanjore-style Carnatic tambura
The sitar is a plucked stringed instrument, originating from the Indian subcontinent, used in Hindustani classical music. The instrument was invented in medieval India, flourished in the 18th century, and arrived at its present form in 19th-century India. Khusrau Khan, an 18th-century figure of the Mughal Empire has been identified by modern scholarship as the inventor of the sitar. According to most historians, he developed the sitar from the setar, an Iranian instrument of Abbasid or Safavid origin. Another view supported by a minority of scholars is that Khusrau Khan developed it from Veena.
Sitar
19th-century sitar with 4 strings
19th-century sitar. This instrument does not have sympathetic strings.
Anatomy of a sitar