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The Cetra was a stringed musical instrument well known for its use in ancient times, belonging to the chordophone family. The instrument was initially constructed in wood, similar to the lyre, but with a larger harmonic case. The cetra with these characteristics spread from ancient Greece, where it was played by professional citaredi, its use also spread to Rome and Corsica. Over the centuries its structure was altered further, until the term 'cetra' came to signify a pear-shaped instrument with a flat sound-board and a long neck, whose pairs of metal strings were plucked. The term cetra also is sometimes used to refer to the cittern, a Renaissance instrument similar to the lute. ==Use of the word in musical works== The name ''La Cetra'' was also used by a number of composers to entitle sets of their works. These composers included Legrenzi, Marcello and Vivaldi. *Giovanni Legrenzi (1626–1690), a prominent composer in Venice in the late 17th century, was the first to use the name ''La Cetra'', for a collection of 18 sonatas published in Venice in 1673.〔Legrenzi's ''La Cetra'' was published as Op. 10, though it was in fact Legrenzi’s 11th volume. It appears that his Venetian publisher, who had published his Op. 9 mass and psalms in 1667 some years before, was unaware of his Op. 10 solo motets published in Bologna in 1670. A manuscript copy dating from 1680 corrects the numbering, though a second edition, printed again in Venice in 1682, preserves the original numbering. See Stephen Bonta (ed), ''La Cetra. Sonate a due tre e quattro stromenti, libro quattro, opus 10, 1673'', Department of Music, Harvard University, 1992, p. xv.〕 ''La Cetra'' was an early example of a collection of sonatas published in sets of six (in this case, three sets of six) which was to become a standard practice. As with the remainder of Legrenzi’s considerable output of sonatas – ''La Cetra'' was his fourth volume – the majority are for stringed instruments with organ continuo. There are, however, two curious sonatas in ''La Cetra'' set for a quartet of viols which can furthermore be played a minor third lower by simply changing the clefs.〔Quite why Legrenzi chose to write for viols at this late date is unclear, though he did, at the time, have an association with the Mendicanti in Venice, which owned a number of viols; while the dedication is to the Emperor Leopold I, whose court also had viols at this time and indeed as late as the turn of the 18th century. See, for example, Peter Allsop, ''Cavalier Giovanni Battista Buonamente: Franciscan Violinist'', Ashgate, 2005, pp. 61, 121.〕 ''La Cetra'' is in a number of respects more modern than many of its predecessors (including Legrenzi’s own collections). It is, for example, mainly scored for the violins and violas that were replacing viols as the main stringed instrument, while the music itself reflects an increasing interest in tonality whereas previously the modal system had played a significant role in determining the ordering of sonatas. ''La Cetra'' was to become the most highly esteemed of Legrenzi’s works, and the impact of the sonatas carried his name into the history of European music. *Alessandro Marcello (1669–1747), who lived and worked somewhat later in Venice, published a set of 6 concerti he had written under the title of ''La Cetra''. These concerti are "unusual for their wind solo parts, concision and use of counterpoint within a broadly Vivaldian style," according to Grove. *Antonio Vivaldi (1678–1741), the Red Priest of Venice, used the name ''La Cetra'' for two different sets of his works. * *The first set that he called ''La Cetra'' consisted of 12 concertos, Op. 9, his last great set of printed violin concerti. He dedicated them to the music-loving Habsburg monarch, the Emperor Charles VI in 1727. * *The following year, 1728, Vivaldi wrote another set of 12 concerti that he again, for unknown reasons, named ''La Cetra''. He dedicated this new set of concerti again to Charles VI and gave him the manuscript of the concerti. The concerti were never published. They have been offered in reconstructed form by Andrew Manze and The English Consort as ''Concertos for the Emperor''. In Monteverdi's opera ''L'Orfeo'' (1607, libretto by Alessandro Striggio) Orpheus refers to his instrument as a Cetra (e.g. in the aria "", act 4). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「cetra」の詳細全文を読む スポンサード リンク
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