A harpsichord (clavicembalo; clavecin; Cembalo; clavecín; cravo; klavecimbel; klawesyn) is a musical instrument played by means of a keyboard. This activates a row of levers that turn a trigger mechanism that plucks one or more strings with a small plectrum made from quill or plastic. The strings are under tension on a soundboard, which is mounted in a wooden case; the soundboard amplifies the vibrations from the strings so that the listeners can hear it. Like a pipe organ, a harpsichord may have more than one keyboard manual, and even a pedal board. Harpsichords may also have stop buttons which add or remove additional octaves. Some harpsichords may have a buff stop, which brings a strip of buff leather or other material in contact with the strings, muting their sound to simulate the sound of a plucked lute.
The term denotes the whole family of similar plucked-keyboard instruments, including the smaller virginals, muselar, and spinet. The harpsichord was widely used in Renaissance and Baroque music, both as an accompaniment instrument and as a soloing instrument. During the Baroque era, the harpsichord was a standard part of the continuo group. The basso continuo part acted as the foundation for many musical pieces in this era. During the late 18th century, with the development of the fortepiano (and then the increasing use of the piano in the 19th century) the harpsichord gradually disappeared from the musical scene (except in opera, where it continued to be used to accompany recitative). In the 20th century, it made a resurgence, being used in historically informed performances of older music, in new compositions, and, in rare cases, in certain styles of popular music (e.g., Baroque pop).
History of the harpsichord
The harpsichord was most likely invented in the late Middle Ages. By the 16th century, harpsichord makers in Italy were making lightweight instruments with low tension brass stringing. A different approach was taken in the Southern Netherlands starting in the late 16th century, notably by the Ruckers family.
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Baroque music (UKbəˈrɒk or USbəˈroʊk) refers to the period or dominant style of Western classical music composed from about 1600 to 1750. The Baroque style followed the Renaissance period, and was followed in turn by the Classical period after a short transition (the galant style). The Baroque period is divided into three major phases: early, middle, and late. Overlapping in time, they are conventionally dated from 1580 to 1650, from 1630 to 1700, and from 1680 to 1750.
The piano is a keyboard instrument that produces sound when pressed on the keys. Most modern pianos have a row of 88 black and white keys: 52 white keys for the notes of the C major scale (C, D, E, F, G, A and B) and 36 shorter black keys raised above the white keys and set further back, for sharps and flats. This means that the piano can play 88 different pitches (or "notes"), spanning a range of a bit over seven octaves. The black keys are for the "accidentals" (F/G, G/A, A/B, C/D, and D/E), which are needed to play in all twelve keys.
The clavichord is a stringed rectangular keyboard instrument that was used largely in the Late Middle Ages, through the Renaissance, Baroque and Classical eras. Historically, it was mostly used as a practice instrument and as an aid to composition, not being loud enough for larger performances. The clavichord produces sound by striking brass or iron strings with small metal blades called tangents. Vibrations are transmitted through the bridge(s) to the soundboard.
This study proposes a harvesting robot capable of plucking tea leaves without cutting them with blades. To harvest high-quality tea, it is necessary to reproduce the plucking motion of breaking the petiole of the leaf, that is, the complicated human hand m ...