Electronic musical instrument Electronic musical instrument An electronic musical instrument is a musical instrument that produces sound using electronic circuitry. Such an instrument sounds by outputting an electrical, electronic or digital audio signal that ultimately is plugged into a power amplifier which drives a loudspeaker, creating the sound heard by the performer and listener. An electronic instrument might include a user interface for controlling its sound, often by adjusting the pitch, frequency, or duration of each note. A common user interface is the musical keyboard, which functions similarly to the keyboard on an acoustic piano, except that with an electronic keyboard, the keyboard
Jack Nicholson top five, including Nicholson's first for Best Actor. The role seemed perfect for Nicholson, with biographer Ken Burke noting that his "smartass demeanor balances his genuine concern for the treatment of his fellow patients with his independent spirit too free to exist in a repressive social structure". Forman allowed Nicholson to improvise throughout the film, including most of the group therapy sequences. Reviewer Marie Brenner notes that his bravura performance "transcends the screen" and continually inspires the other actors by lightening their mental illnesses with his comic dialogue. She describes his performance: Also in 1975, Nicholson starred in Michelangelo Antonioni's