Is the erhu megaphone useful?
Useful, but pay attention to fixed stability.Useful, but it affects the quality of sound
Useful. The loudspeaker needs to be placed behind the erhu
usefulFirst of all to the wheat on the tube of a far away reason piano.Second pull the erhu attention to intonation.Finally, with the enlargement of the loudspeaker, the music played more beautifully.
