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A metronome (from Ancient Greek μέτρον (métron) 'measure' and νόμος (nómos) 'law') is a device that produces an audible click or other sound at a uniform interval that can be set by the user, typically in beats per minute (BPM). Metronomes may also include synchronized visual motion, such as a swinging pendulum or a blinking light.
The silent red metronome was designed by international artist Vratislav Novák, and officially named "Time Machine". [2] [3] It may be the largest metronome in the world, although Geneva (since 1972) and Gdańsk (since 2016) each have a larger pendulum clock. [4] [5] The Prague Metronome is functional, but it is not always in operation. [6]
For example, a tempo of 60 beats per minute signifies one beat per second, while a tempo of 120 beats per minute is twice as rapid, signifying two beats every second. The note value of a beat will typically be that indicated by the denominator of the time signature. For instance, in 4 4 time, the beat will be a crotchet, or quarter note.
A metronome by Maelzel, Paris, 1815. Johann Nepomuk Maelzel (or Mälzel; August 15, 1772 – July 21, 1838) was a German inventor, engineer, and showman, best known for manufacturing a metronome and several music-playing automatons, and displaying a fraudulent chess machine.
In music and music theory, the beat is the basic unit of time, the pulse (regularly repeating event), of the mensural level [1] (or beat level). [2] The beat is often defined as the rhythm listeners would tap their toes to when listening to a piece of music, or the numbers a musician counts while performing, though in practice this may be ...
Examples of metric modulation may include changes in time signature across an unchanging tempo, but the concept applies more specifically to shifts from one time signature/tempo to another, wherein a note value from the first is made equivalent to a note value in the second, like a pivot or bridge.
"Thousand" was listed in Guinness World Records for having the second fastest tempo in beats-per-minute (BPM) of any released single, peaking at approximately 1,015 BPM. [ 1 ] Track listing
Opening of the "Minute Waltz" The Waltz in D-flat major, Op. 64, No. 1, sometimes known as "Valse du petit chien" (French for "Waltz of the puppy"), and popularly known in English as the Minute Waltz, is a piano waltz by Polish composer and virtuoso Frédéric Chopin. It is dedicated to the Countess Delfina Potocka.