Some play a variety of string, brass, woodwind, or percussion instruments or electronic synthesizers. Those who learn several related instruments, such as the flute and clarinet, have better employment opportunities. Singers interpret music using their knowledge of voice production, melody, and harmony. They sing character parts or perform in their own individual style. Singers are often classified according to their voice range soprano, contralto, tenor, baritone, or bass or by the type of music they sing, such as opera, rock, reggae, folk, rap, or country and western.
Composers create original music such as symphonies, operas, sonatas, or popular songs.
They transcribe ideas into musical notation using harmony, rhythm, melody, and tonal structure. Although most songwriters still practice their craft on instruments or with pen and paper, many songwriters now compose and edit music using computers. Arrangers transcribe and adapt musical composition to a particular style for orchestras, bands, choral groups, or individuals. Components of music including tempo, volume, and the mix of instruments needed are arranged to express the composer s message. While some arrangers write directly into a musical composition, others use computer software to make changes.