Music

• idea

  (music) melodic subject of a musical composition; "the theme is announced in the first measures";...

• flourish

  (music) a short lively tune played on brass instruments; "he entered to a flourish of trumpets";...

• roulade

  (music) an elaborate run of several notes sung to one syllable.

Also contains

• voice

  The melody carried by a particular voice or instrument in polyphonic music; "he tried to sing...

• phrase

  A short musical passage.

• glissando

  A rapid series of ascending or descending notes on the musical scale.

• leitmotiv

  A melodic phrase that accompanies the reappearance of a person or situation (as in Wagner's...

• theme song

  A melody that recurs and comes to represent a musical play or movie.

• signature

  A melody used to identify a performer or a dance band or radio/tv program.