Bulbul Tarang
Bulbul tarang, also known as the "banjo", is a common instrument in India. The name bulbul tarang literally translates to "waves of nightingales". It is made of a number of strings passing over what resembles a finger board. However, instead of directly fingering the keys, they are pressed with a series of keys like a piano. Sometimes the keys are similar to a piano keyboard, but more often they resemble typewriter keys.
The origin of the bulbul tarang is interesting. It is an Indian version of the Japanese taisho koto. The first taisho koto was built by Goro Morita in 1912 in Nogoya Japan. The term taisho refers to the second former Japanese emperor; while the term koto refers to it being a stringed instrument. The taisho koto became a very popular instrument in Japan; by 1929 it is estimated that over quarter of a million units were sold. Although it is established that the bulbul tarang is derived from the taisho koto, the obvious question is "what was the situation before that?" There is great reason to believe that the taisho koto is a technical extension of the various pianolins, pianettes, and hurdy gurdies, that were popular in the 19th century.
Tuning the bulbul tarang is very easy, however we must not forget that there are innumerable variations in size, number of strings, gauge of strings, etc. Therefore, we will just go over the general principles and you can work out the details.