An electronic tanpura is an electronic instrument that replicates the sound of an Indian string instrument known as the tanpura (tambura), used to provide a constant drone to accompany another's vocal or instrumental melody.
In Indian music, the drone is a basic function of the music. The development of a raga, any composition or song within raga presupposes and requires the continuous sounding of the key-note, its octave and another tone, usually the fifth or fourth. Traditionally drone is often provided by one or more tanpura player(s), especially for vocal performances.
The electronic tanpura was created as a marketable, practical solution for instrumentalists, having their hands otherwise engaged, who cannot readily avail themselves of able tanpura players for their long hours of private practice. Generally, the electronic tanpura has one or more dials to control the tone and volume, and may have other switches and buttons that allow a certain pitch and volume to be saved and used again at a later time. The range is usually one to two octaves.
The electronic tanpura was first invented by G Raj Narayan in 1979, an engineer-flautist from Bangalore, India, and demonstrated at the annual conference of the Music Academy Chennai in December that year. The products were manufactured by the company he founded, Radel. The first versions were created with the technology then available, using discrete components and transistors. In the late 1990s, these gave way to models using sampled recordings of the traditional tanpura on a chip. In the 2000s, tanpura mobile apps have been produced.
Since its creation in India, the electronic tanbura has also found niche popularity in music outside of India.
For many musicians the electronic tanpura is a practical commodity, delivering a passable substitute for a live tanpura. It is easier and less expensive than maintaining a live tanpura player, however some musicians consider the electronic tanpura is a poor substitute when compared to a good tanpura in expert hands as the tones it creates lack the dynamics of a live musician, producing a mechanical, repetitive sound.
- Vijaya Ghose (1994). Limca Book of Records. Bisleri Beverages Limited. p. 127. The first electronic tanpura was also developed by M.G. Raj Narayan in December 1979
- Spaink, Martin (2003). "Some reflections on the use of Electronic Substitute Tanpura and the intricacies of proper tanpura tuning". Retrieved 2007-06-25.
- Sruti. P.N. Sundaresan. 2006. p. 71. Any model electronic tanpura produces a sound that is necessarily artificial, which is the opposite of artistic. The electronic substitute has no artistic value and has nothing to teach us but repetitive unnatural boredom.