A concert march is a march specifically composed for a concert band

Concert band

A concert band, also called wind band, symphonic band, symphonic winds, wind orchestra, wind symphony, wind ensemble, or symphonic wind ensemble, is a performing ensemble consisting of several members of the woodwind instrument family, brass instrument family, and percussion instrument family.A...

 or brass band

Brass band

A brass band is a musical ensemble generally consisting entirely of brass instruments, most often with a percussion section. Ensembles that include brass and woodwind instruments can in certain traditions also be termed brass bands , but are usually more correctly termed military bands, concert...

 (to be played at a formal concert

Concert

A concert is a live performance before an audience. The performance may be by a single musician, sometimes then called a recital, or by a musical ensemble, such as an orchestra, a choir, or a musical band...

 or other audience

Audience

An audience is a group of people who participate in a show or encounter a work of art, literature , theatre, music or academics in any medium...

 event). See march music.

Concert marches are mostly similar to regular military

Military

A military is an organization authorized by its greater society to use lethal force, usually including use of weapons, in defending its country by combating actual or perceived threats. The military may have additional functions of use to its greater society, such as advancing a political agenda e.g...

 marches or field marches except for these differences:

• Concert marches usually contain more difficult rhythm
  Rhythm
  Rhythm may be generally defined as a "movement marked by the regulated succession of strong and weak elements, or of opposite or different conditions." This general meaning of regular recurrence or pattern in time may be applied to a wide variety of cyclical natural phenomena having a periodicity or...
  
  s which in other cases, such as marching
  Marching
  See also: Loaded marchMarching refers to the organized, uniformed, steady and rhythmic walking forward, usually associated with military troops.Marching is often performed to march music, and often associated with military parades....
  
  , would be awkward to play.
• Concert marches may have more intricate harmonies
• Although most concert marches follow the standard march form, some do not. William Latham's "Brighton Beach
  Brighton Beach
  Brighton Beach is an oceanside neighborhood in the New York City borough of Brooklyn. As of 2000, it has a population of 75,692 with a total of 31,228 households.-Location:...
  
  " for example, follows an IAABABATITCoda form.
• Concert marches tend to have codas
  Coda (music)
  Coda is a term used in music in a number of different senses, primarily to designate a passage that brings a piece to an end. Technically, it is an expanded cadence...
  
  .
• Concert marches may be played slower (100-120 b/m)
• Concert marches tend to be longer.
• Concert marches tend to have longer introductions
  Introduction (music)
  In music, the introduction is a passage or section which opens a movement or a separate piece. In popular music this is often abbreviated as intro...
  
  .

As with every single type of march (from Military to Concert to Screamer

Screamer (march)

A screamer is a descriptive name for a circus march, in particular, an upbeat march intended to stir up the audience during the show.- History :...

 and contest marches), they usually have an introduction, at least three melodies

Melody

A melody , also tune, voice, or line, is a linear succession of musical tones which is perceived as a single entity...

, and a trio

Trio (music)

Trio is generally used in any of the following ways:* A group of three musicians playing the same or different musical instrument.* The performance of a piece of music by three people.* The contrasting section of a piece in ternary form...

.

Some of the most-performed concert march composers are John Philip Sousa

John Philip Sousa

John Philip Sousa was an American composer and conductor of the late Romantic era, known particularly for American military and patriotic marches. Because of his mastery of march composition, he is known as "The March King" or the "American March King" due to his British counterpart Kenneth J....

, Karl L. King, Henry Fillmore

Henry Fillmore

Henry Fillmore was an American musician, composer, publisher, and bandleader, best-known for his many marches and screamers.-Biography:James Henry Fillmore Jr. was born in Cincinnati, Ohio as the eldest of five children...

, C.L. Barnhouse

Charles Lloyd Barnhouse

Charles Lloyd Barnhouse was a 19th-century American music publisher. Barnhouse started a music publishing firm in 1886 that exists today as the C. L...

, Kenneth Alford

Kenneth Alford

Frederick Joseph Ricketts was a British composer of marches for band. Using the pen name Kenneth J. Alford, his marches are considered to be great examples of the art...

, and J. J. Richards.