Shruti Box gives you a portable tanpura and tabla drone for vocal riyaz instrument tuning and classical music practice — right from your phone.

Tap any note (C through B including sharps) to start a continuous drone in that key. Choose Pa or Ma to match your voice and switch between the Tanpura and Chautal Tabla tabs depending on what you're practicing.

• 12 notes across two backgrounds: Tanpura and Chautal Tabla
• Pa/Ma toggle for singer's pitch preference
• One-tap play and stop
• Clean distraction-free interface built for practice sessions

Shruti Box Premium removes ads and lets the drone keep playing even with your screen locked so you can practice hands-free.

Have feedback or a feature request? Email [email protected] — I read every message and use it to improve the app.