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
All work and no play makes Jack a dull boy added a second part to the proverb, as in "Harry and Lucy Concluded" (1825) by the Irish novelist Maria Edgeworth: The proverb has been used widely throughout popular media, notably including James Joyce's short story "Araby" to Jack Kerouac's "Big Sur", the 1957 movie "The Bridge on the River Kwai", and the 1980 horror movie "The Shining", directed by Stanley Kubrick. In Kubrick's film the main character, Jack Torrance (played by Jack Nicholson), is found to have abandoned the play he was writing in favor of typing this sentence over and over onto reams of paper. A number of other