<p><strong>Noun</strong></p><ul><li>musical sounds in agreeable succession or arrangement.</li><li>the succession of single tones in musical compositions, as distinguished from harmony and rhythm.</li><li>the principal part in a harmonic composition; the air.</li><li>a rhythmical succession of single tones producing a distinct musical phrase or idea.</li><li>a poem suitable for singing.</li><li>intonation, as of a segment of connected speech.</li></ul><p><strong>Synonyms</strong></p><ul><li>theme</li><li>descant</li><li>song</li><li>tune</li></ul>