Bubul Tarang

The bulbul tarang (Hindi: literally "waves of nightingales", alternately Indian banjo) is a string instrument from India and Pakistan which evolved from the Japanese taishōgoto, which likely arrived in South Asia in the 1930s. The instrument employs two sets of strings, one set for drone, and one for melody. The strings run over a plate or fretboard, while above are keys resembling typewriter keys, which when depressed fret or shorten the strings to raise their pitch.