|Shiawase Biyori (Instrumental)|
|English Name||Happy Perfect Weather|
|Album||K-ON!! Character Image Songs: Yui Hirasawa|
|Performed By||Yui Hirasawa|
|Release||September 21, 2010|
|Genre||J-Pop, Anime Song|
|Previous||Oh My GĪTA!! (Instrumental)|
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Shiawase Biyori (Instrumental) is the instrumental version of Yui Hirasawa's song "Shiawase Biyori", produced by Pony Canyon and published on 21 September 2010 within Yui's Character Image Songs album.
The song was was written by Shouko Ohmori and composed and arranged by Tom-H@ck.