Question

E URGENTE


Theremin, also called Thereminvox, or Etherophone, electronic musical instrument invented in 1920 in the Soviet Union by Leon Theremin (also called Lev Termen). It consists of a box with radio tubes producing oscillations at two sound-wave frequencies above the range of hearing; together, they produce a lower audible frequency equal to the difference in their rates of vibration. Pitch is controlled by moving the hand or a baton toward or away from an antenna at the right rear of the box. This movement alters one of the inaudible frequencies. Harmonics, or component tones, of the sound can be filtered out, allowing production of several tone colours over a range of six octaves. THEREMIN. Available at: . Accessed on: 26 Mar. 2020. O objeto mostrado na imagem, que está descrito no texto, é um (A) amplificador. (B) instrumento musical. (C) sintetizador. (D) aparelho de som.

Answer 1

Resposta:

Letra b) Instrumento musical

Explicação:

O teremim ou theremin é um dos primeiros instrumentos musicais completamente eletrônicos, controlado sem qualquer contato físico pelo músico.