A march, as a musical genre, is a piece of music with a strong regular rhythm which in origin was expressly written for marching to and most frequently performed by a military band. In mood, marches range from the moving death march in Wagner's Götterdämmerung to the brisk military marches of John Philip Sousa and the martial hymns of the late 19th century. Examples of the varied use of the march can be found in Beethoven's Eroica Symphony, in the Marches Militaires of Franz Schubert, in the Marche funèbre in Chopin's Sonata in B flat minor, the "Jäger March" in the Op. 91a by Jean Sibelius, and in the Dead March in Handel's Saul.
Marches can be written in any time signature, but the most common time signatures are , (alla breve , although this may refer to 2 time of Johannes Brahms, or cut time), or . However, some modern marches are being written in or time. The modern march tempo is typically around 120 beats per minute. Many funeral marches conform to the Roman standard of 60 beats per minute. The tempo matches the pace of soldiers walking in step. Both tempos achieve the standard rate of 120 steps per minute.
Each section of a march typically consists of 16 or 32 bars, which may repeat. Most importantly, a march consists of a strong and steady percussive beat reminiscent of military field drums.
A military music event where various marching bands and units perform is called tattoo.
Marches frequently change keys once, modulating to the subdominant key, and occasionally returning to the original tonic key. If it begins in a minor key, it modulates to the relative major. Marches frequently have counter-melodies introduced during the repeat of a main melody. Marches frequently have a penultimate dogfight strain in which two groups of instruments (high/low, woodwind/brass, etc.) alternate in a statement/response format. In most traditional American marches, there are three strains. The third strain is referred to as the "trio".
The march tempo of 120 beats or steps per minute was adopted by the Napoleonic army in order to move faster.