This is the 7th fugue (in the key of E flat major) from book 2 of Johann Sebastian Bach's Well Tempered Clavier, also known as the 48 Preludes and Fugues. Bach's Preludes and Fugues come in matched pairs in the same key in this collection, and are frequently (though not always) played as a pair in the order Prelude first and then Fugue. Here is the corresponding Prelude no.7 (from book 2) for this Fugue, also in the key of E-flat major, and together the pair are catalogued as BWV 876.
Although there are some easier preludes and fugues in the set, much of Bach's Well-Tempered Clavier is quite challenging to play. However the complete set has for a long time been considered a must for any serious student of piano. Some other preludes and fugues from the set are available on mfiles if you check the Bach page or Classical Sheet Music page. If you have aspirations to be a good classical pianist then we recommend getting the complete Well-Tempered Clavier which comes in two books. Here are links on "sheet music plus" to Book 1 and Book 2 of the Well-Tempered Clavier.
Here is a video of Bach's Bach's Fugue No.7 from book 2 being played on piano:
Play "Bach's Fugue No. 7 in E-flat from Book 2" on Spotify or AppleMusic below, or Click Here for Other Platforms.
License "Bach's Fugue No. 7 in E-flat from Book 2" from Songtradr:
Download Bach's Fugue No. 7 in E-flat from Book 2 as an mp3 file or play it below:
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The image below is the first page of the sheet music, and here you can download the full sheet music for Bach's Fugue No.7 from book 2 in PDF format.