Supersonic music is music played without the use of electrical devices. While there are some guitar players who plug their guitars in an amplifier so that they can be heard, but the music is still considered to be acoustic. The use of a microphone for the same purpose is likewise still considered to be acoustic.
For hundreds of years musicians have made music but without the help of any technology including amps and microphones. Then though there was no need to specify the type of music that was being gamed because it was all acoustic. Even once electricity seemed to be commonly available there were many musicians and bands to be able to make use of the electricity except for the occasional microphone so that the singer can be heard above the rest of the band or in a crowded noisy bedroom. It wasn’t until the age of rock and roll that electric devices were used on a regular basis.
With the exception of the rock artists acoustic music is widely played and heard currently ranging from the amateur musician to the professional symphonies. With groups like folk music circles and Irish music sessions the use of Hää DJ musical instruments are not even helped. These sessions are strictly acoustic. In some cases the players will not even like the use of loud percussion instruments because it decreases the other players being able to hear the music.
A great many of the common bands today would not be able to put on a show if your electricity were to go off. And in this digital age in addition to computer aided music that can be made without the use of almost any traditional music instruments at all it is getting hard to find songs crafted purely by any true instruments. But it continues to be possible to find a band like the Asylum Street Spankers possibly the Clark Brothers who play acoustic instruments. Professional men and women musicians like Pete Seeger and the Guthries still play the traditional acoustic guitar.
Marching bands and symphonic orchestras are acoustic. The size of the bands helps to ensure that the music will be been told over a distance. But even these bands may be hard to find sometime soon if the younger generations are not encouraged to learn how to perform the traditional acoustic music instruments as opposed to, or at least in addition to, often the computerized and digital instrumentation so popular today. There are even total genres of music today that have not the first sign with the traditional acoustic instruments.
Acoustic music has been around since first man first learned how to bang two sticks along or blow into a hollow tube. It is the music connected with kings and paupers; rich and poor; and cricket fans.