For 30 years from 1940 All India radio has baned a musical instrument which is it?

Answer 1

The harmonium.

The harmonium is a keyboard instrument on which twelve semitones of the tempered scale are fixed once and for all in all the three octaves: mandra, madhya and tara. On keyboard instruments only straight notes can be played, grace notes and quarter-tones not being possible. There is no possibility of a slur, meend, or gamaka being played on the harmonium, which are the main essence of Hindustani music, and are essential to keep up the spirit of Hindustani ragadari system. However, it is possible to maintain the continuity of the music to some extent by a skilful handling of the bellows and finger pressure on the keys, but it cannot compete with the continuity of the human voice or the sarangi's sound.

Although roughly the Indian scale of music of twelve semitones is nearly the same as that in Western music, there are certain vital and perceptible differences between the two. The Indian concept of swara does not relate it to a specific pitch point, but to a pitch-range with variegated possibilities of shades and nuances. No keyboard instrument can respond to this concept of swara.

For these reasons, the harmonium was banned in music broadcasts over the National network from 1 March 1940. Some purists like Ameer Khan, Bade Ghulam Ali Khan, Begum Akhtar, etc., went on to even favour the harmonium as an accompaniment as against the sarangi, because they found its notes were unsagging and constant. Its uncanny popularity, therefore, led AIR to seriously review the question of its use in broadcasts of classical and light music, and ultimately in October 1970, after an exile of over three decades, AIR had to issue a directive partially removing the ban on the harmonium in the broadcasts of classical and light classical music on the national network. Though the harmonium is not in vogue in the Carnatic music system today.

Answer 2

the harmonium

Answer 3

tuba