Editing American march music (section)

===Assignments and roles of instrument sections===
Generally, the several instrument sections of an American march band serve the various roles of performing a typical march as follows: 
*Trumpets and cornets almost always carry the melody. They also may be scored various "[[flourish (fanfare)|flourishes]]" and "calls" for effect.
*Clarinets, flutes, and piccolos also carry the melody, and are assigned obbligatos and other integral lines.
*The tubas and other [[bass (music)|basses]] usually carry the bassline, providing the "oom" of the "oom-pah" sound of [[cut time]] marches (see French horns, below); they also provide the tonal foundation of the march, and assist to control volume and tempo.
*French horns almost always carry the rhythmic backup of a march. For example, in cut time marches, they are typically assigned upbeats to provide the "pah" for the stylistic "oom-pah" sound. In 6/8 marches, French horns play on: beat 1, the ''li'' of 1, beat 2, and the ''li'' of 2, (or, '''1'''–la–'''li'''–'''2'''–la–'''li''', see [[solmization#Overview|solmization]]);  thus, the measure is one eighth note, then an eighth rest, then two eighth notes, an eighth rest, then a final eighth note.
*The euphonium often carries the melody, as in the trio of "The Stars and Stripes Forever", and may be assigned other roles.

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