Of the 400 arias regularly sung in opera performances in the mid-twentieth century, only a few dozen continue to be performed.

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Opera singers often turn up to serve arias with your aperitifs.

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"Tahrir, " an ornamented singing style that resembles yodeling, gave the vocal parts an intriguingly Eastern flavor while still sounding like Western opera, and emphasized the uncertainty and anguish of the arias.

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The convoluted plots and the conventions of the opera seria style, with their long da capo (repeat) arias, were thought to make them unperformable.

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Opera from any era is essentially a vocal art form: the singing of arias, duets, ensembles, and choruses.

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Inside, arias from Verdi's "Otello" played as four monitors showed staged performances of the opera in reverse order -- from the death scene finale to the first encounter between the opera's ill-fated couple.

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Her repertoire also included art songs and arias, the most ambitious of which is probably "Elsa's Dream" from Wagner's opera Lohengrin.

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Divas with busy international careers routinely demanded "suitcase arias, " showpieces tailor-made for their own vocal strengths that could be slotted into any given opera.

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