Tanpura with various scales for practicing Indian classical music.
Tanpura Sadhak is built with real Tanpura sounds, and is meant for use as a drone instrument. All musicians, professional or amateur, need a Tanpura or a shruti box for practicing and performing Hindustani or Carnatic classical music.
You can adjust the starting note of the Tanpura, and you can also pick a scale for pitch. You can also vary the speed of the plucking.