Shape is devoid of any definite edges but is enclosed within other shapes

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In art a shape enclosed within another shape that has no defined edges is implied.

beethoven's first public performance in vienna was on march 29, 1795. he gave a piano concert, or akademie, in vienna's burgtheater as part of an event organized by joseph haydn (probably op. 15). in these early years, beethoven's success as a composer was closely tied to his career and renown as a piano virtuoso.

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