An online tanpura in A

A — safed chhe — is the brighter of the two standard female keys, a semitone of extra light above G♯. It is also the one note the rest of the musical world has already agreed on: A is the western orchestra's tuning reference, which makes an A tanpura the easiest drone to share a room with a violin, a guitar, or a keyboard that will not budge.

Sangat's tanpura holds A with real plucks and a fine tune in cents, for the day the other instrument turns out to be at 442. Eighteen tunings, three plucking styles, a deeper or brighter voice.

It is free, it needs no account, and it runs anywhere a browser does. Press play; the room is tuned.