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The String Quartet No. 12 in , op. 127, by Ludwig van Beethoven, was completed in 1825. It is the first of Beethoven's late quartets. There are four movements: #Maestoso ( time signature) – Allegro ( time signature) #Adagio, ma non troppo e molto cantabile ( initial time signature) #Scherzando vivace ( time signature) #Allegro (₵ time signature) The first movement is twice interrupted – just before the development of the sonata form begins, and when that section is almost but not quite over – by recurrences of the opening's Maestoso music. The immense second movement is in the subdominant key of . It consists of a set of six variations and a coda. The first variation is in 12/8 meter with darker harmonies and quick changes in dynamics. The second variation increases the tempo to ''andante con moto'' and adjusts the meter to 4/4. Here, the two violins engage in a dialogue over staccato accompaniment. The third variation shifts to E major, enharmonically the flat submediant, and the tempo shifts to a hymn-like ''adagio molto espressivo''. The fourth variation returns to 12/8 and the key of A by dropping a half-step from E to the dominant note (E). This variation has a codetta which transitions the key to in preparation for the next variation. The fifth variation is ''sotto voce'' and has been called a "mysterious episode" and begins in D major and transitions to the parallel . The recapitulatory sixth variation returns to 12/8, presents only half of the theme and connects directly to the coda. The penultimate variation recapitulates the theme after a contrasting section in the submediant, while the final variation restores the tonic and basic thematic material after an episode in the subdominant. Beethoven based this tonal progression on the finale of the Ninth Symphony (Op. 125) where the orchestral double fugue episode in is followed by the "grand" variation for full orchestra and choir in D major, followed by the "" episode in G major, which moves into the choral double fugue in the tonic D major. *Op. 127: A → E (lowered submediant) – penultimate variation → D (subdominant) → final variation *Op. 125: D → B (lowered submediant) – penultimate variation → G (subdominant) → final variation The scherzo's trio is a ''Presto'' of a kind Beethoven did not use very often, though it is similar in sound and phrasing to some of his bagatelles from the contemporary Op. 126 set. In the first, Schott, edition of 1826, the finale had no initial tempo marking (other than ''Finale'') (and the third movement's opening indication was "Scherzo: Vivace", not "Scherzando vivace").〔See the Beethoven-Haus Bonn scan of the full score and parts of the first edition, as digitized and reuploaded @ IMSLP.〕 Beethoven initially planned two additional movements: one between the first and second, and another between the third and fourth. ==Notes== 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「String Quartet No. 12 (Beethoven)」の詳細全文を読む スポンサード リンク
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