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KS update 1.3
{{Infobox musical composition
| name = Piano Sonata No. 29
| composer = [[Ludwig van Beethoven]]
| image = Ludwig Van Beethoven LCCN2003663903.jpg
|caption = Beethoven in 1818–19; portrait by {{ill|Ferdinand Schimon|de}}
| other_name = ''Hammerklavier''
| opus = 106
| key = [[B-flat major]]
| composed = 1817
| published = 1818
| movements = 4
| duration = About 40–45 minutes
}}

[[Ludwig van Beethoven]]'s '''Piano Sonata No. 29 in B-flat major''' (also called the '''''Hammerklavier'''),'' [[Opus number|Op.]] 106, is a piece of music for solo [[piano]]. It was written between 1817 and published in 1818. The sonata was [[Dedication|dedicated]] to [[Archduke Rudolf of Austria|Archduke Rudolf]].<ref>{{Cite book|title=Beethoven|last=Kinderman|first=William|publisher=Oxford University Press|year=2009|isbn=978-0-19-532825-7|location=New York|pages=219}}</ref><ref>{{Cite web|title=Beethoven's Hammerklavier Sonata - Part One|url=https://crumey.co.uk/beethoven_8_hammerklavier_sonata.html|access-date=2024-12-25|website=crumey.co.uk}}</ref>

The sonata is 40 to 45 minutes long, the longest of Beethoven's piano [[Sonata|sonatas]].
== Form ==
{{Listen|type=music|image=none|help=no
|filename=Klaviersonate Nr. 29 B-Dur op. 106 Hammerklavier - I. Allegro.ogg
|filename2=Klaviersonate Nr. 29 B-Dur op. 106 Hammerklavier - II. Scherzo Assai vivace.ogg
|filename3=Klaviersonate Nr. 29 B-Dur op. 106 Hammerklavier - III. Adagio sostenuto.ogg
|filename4=Klaviersonate Nr. 29 B-Dur op. 106 Hammerklavier - IV. Largo. Allegro risoluto.oga
|title=I. Allegro
|title2=II. Scherzo: Assai vivace
|title3=III. Adagio sostenuto
|title4=IV. Largo. Allegro risoluto
|description4=Played by [[Artur Schnabel]] in 1932}}
The piece contains four movements, a structure used by Beethoven in his earlier piano sonatas. However, the order of the inner movements are reversed, with the ''Scherzo'' placed before the ''Adagio sostenuto''.{{sfn|Kinderman|2008|p=120}}
The sonata has four [[Movement (music)|movements]]: <ref>{{Cite web|title=Piano Sonata No.29, Op.106 (Beethoven, Ludwig van) - IMSLP|url=https://imslp.org/wiki/Piano_Sonata_No.29,_Op.106_(Beethoven,_Ludwig_van)|access-date=2024-12-25|website=imslp.org}}</ref>{{ordered list|''Allegro'' in B-flat major|''Scherzo: Assai vivace'' in B-flat major|''Adagio sostenuto'' in F-sharp minor|''Largo. Allegro risoluto'' in B-flat major|list_style_type=upper-roman}}

== Piano Sonata No. 29 (Beethoven) Media ==
<gallery widths='160px' heights='100%' mode='traditional' caption=''>
File:Sketches for the slow movement of Piano Sonata no. 29, op. 106, ('Hammerklavier'), Beethoven, probably 1818, musical autograph, inscription Vincent Novello- Morgan Library & Museum - New York City - DSC06708.jpg|Sketches for the slow movement of Piano Sonata No. 29, probably of 1818, musical autograph

File:Sonata No. 29 1st Movement.png|Sonata No. 29 1st Movement

File:Sonata No. 29 2st Movement.png|Sonata No. 29 2st Movement

File:Sonata No. 29 3st Movement.png|Sonata No. 29 3st Movement

File:Beethoven's Piano Sonata No.29, Op.106 ("Hammerklavier"), Movement IV Introduction.png|The beginning of the fourth movement.

File:Beethoven's_Piano_Sonata_No.29,_Op.106_("Hammerklavier"),_Movement_IV_Subject_Entrance.png|The entrance of the fugue. The subject appears in the bottom staff, and continues for a few bars past this excerpt.
</gallery>
== References ==
{{reflist}}

[[Category:Piano sonatas by Ludwig van Beethoven|Piano Sonata 029]]
[[Category:Compositions in B-flat major]]
{{stub}}