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In music, a two hundred fifty-sixth note or demisemihemidemisemiquaver〔http://csee.essex.ac.uk/camerata/unlp_asooja_long_14.pdf〕 is a note played for 1/256 of the duration of a whole note. It lasts half as long as a hundred twenty-eighth note and takes up one quarter of the length of a sixty-fourth note. In musical notation it has a total of six flags or beams. Notes this short are very rare in printed music but not unknown. They are principally used for brief, rapid sections in slow movements. For example they occur in some editions of the second movement of Beethoven's Third Piano Concerto (Op. 37), to notate rapid scales.〔Byrd, Donald (ongoing). "(Extremes of Conventional Music Notation )", ''Informatics.Indiana.edu''.〕 Another example is in Mozart's Variations on "Je suis Lindor", where four of them are used in the slow twelfth variation.〔Mozart, Wolfgang Amadeus. ''Zwölf Variationen in Es über die Romanze "Je suis Lindor" File:Semigarrapatea.svg|256th note File:Silencio de semigarrapatea.svg|256th rest The names of this note (and rest) vary greatly in European languages: ==Even shorter notes== The next note value shorter than the 256th note is the 512th note with seven flags or beams; it is half as long as the 256th note. After this would come the 1024th note (eight flags or beams), the 2048th note (nine flags or beams), the 4096th note (ten flags or beams), and so on indefinitely, with each note half the length of its predecessor. The shortest note value to have ever been used in a published work is the 1024th note (notated incorrectly as a 2048th note) in Anthony Philip Heinrich's ''Toccata Grande Cromatica'' from ''The Sylviad'', Set 2, written around 1825; 256th and 512th notes also occur frequently in this piece.〔 For comparison, the shortest notated duration supported by Finale is a 4096th note,〔(【引用サイトリンク】title=Secondary Beam Break Selection )〕 while LilyPond can write beamed notes as short as a th (= 2−30) note.〔(【引用サイトリンク】title=Minimum possible duration )〕 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「Two hundred fifty-sixth note」の詳細全文を読む スポンサード リンク
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