Melody

Mel"o*dy (?), n.; pl. Melodies (#). [OE. melodie, F. mélodie, L. melodia, fr. Gr. ? a singing, choral song, fr. ? musical, melodious; me`los song, tune + ? song. See Ode.]

1. A sweet or agreeable succession of sounds.

Lulled with sound of sweetest melody.
Shak.

2. (Mus.) A rhythmical succession of single tones, ranging for the most part within a given key, and so related together as to form a musical whole, having the unity of what is technically called a musical thought, at once pleasing to the ear and characteristic in expression.

☞ Melody consists in a succession of single tones; harmony is a consonance or agreement of tones, also a succession of consonant musical combinations or chords.

3. The air or tune of a musical piece.

Syn. -- See Harmony.