The musical synthesizer "Rhythm-2" was produced since 1984 by the Kirov software for the production of musical instruments. The synthesizer is a monophonic keyboard instrument designed for solo, ensemble, orchestral performance of musical works of various genres, as well as for educational purposes and to obtain new sound effects. It can be used both in pop orchestras and at home in conjunction with an amplifier-acoustic device having an input sensitivity of at least 0.775. It is possible to use a low-frequency amplifier radio, TV, tape. The sound quality of the synthesizer will depend on the quality of the used acoustic amplifier device. On the synthesizer, you can simulate with a certain degree of authenticity the sound of classical musical instruments (keyboards, strings, reed, percussion) and create original sound effects (wind noise, the sound of a passing steam train, the sound of the sea surf, a bullet shot and whistle). On the synthesizer, you can play tunes with randomly changing pitch or timbre of sound. Names of controls: deviation, modulation, frequency, glissando, range (4'8'16'32 '), adjustment, modulation (duty cycle), duty cycle, form of modulation, noise, level rectangle. signal, wave selection, wave level, cut-off frequency, keyboard tracking (1 / 1-1 / 2), resonance, modulation shape and depth, telephone, oscillator circuit, output, memory, attack filter, decay, support, end attenuation, amplifier - attack, decay, support, end attenuation.