C minor is a minor scale based on C. The harmonic minor raises the B♭ to B♮.Its key signature has three flats. When written in jazz notation, its short form is Cm.
Its relative major is E-flat major, and its parallel major is C major.
In the Baroque period, music in C minor was usually written with a two-flat key signature. When this music is printed today, sometimes it is still printed in the same way.
Mozart wrote two piano concertos in a minor key, and one of them is in C minor, No. 24, K. 491.
C minor has had the meaning of heroic struggle from Beethoven's time. One of the most famous pieces in this key is his Symphony No. 5. The fact that Brahms's Symphony No. 1 is also in C minor helped it get its nickname as "Beethoven's Tenth" (Beethoven's actual unfinished Symphony No. 10 in E flat major may have had a significant central C minor section in the first movement). Three of Anton Bruckner's ten numbered symphonies are in C minor.
Well-known classical compositions in this key[change | edit source]
Diatonic Scales and Keys
|The table shows the number of sharps or flats in each scale. Minor scales are written in lower case.