Hadopasana Electronic Tambura Two in One Shruti box

Hādòpasana Electronic Tambura Two in One

New Aruna Musicals

Shruthi Electronic Systems

Shruti box - also known as surpeti, swar pethi, swar peti, swarpeti, or sur peti
Histrory & Info: http://www.indianmusicinstitute.com & http://chandrakantha.com

The Tambura reproduces the sound of a conventional tanpura but, does it all through electronics. There are many different tuning capabilities ie; pitch, tone, key, tempo etc...

The shruti box is an Indian drone instrument. It is a small box whose only function is to provide the drone; there are two basic forms, manual and electronic. The manual form is a small free reed organ. It has no keys, can play no melody, and is pumped by some small bellows with the hand.

In the last few decades, the electronic versions have become very popular. The electronic ones have evolved considerably over the last few decades. Original versions were simple analogue devices that tended to drift and were unreliable, but advances in digital technology have brought them to a high level of reliability. Such versions are commonly referred to as "electronic tamburas".

Although the surpeti is common throughout India, their usage differs considerably. Hindustani musicians will regularly use them in practice but usually would not consider bringing them onto the stage. Carnatic musicians very regularly use them in stage performances.


The syth reproduces the sound of a conventional tanpura but, does it all through electronics. There are many different tuning capabilities ie; pitch, tone, key, tempo etc...

The unit is in amazing vintage condition and sounds great.