melody
noun
[ ˈmɛlədi ]
• a sequence of single notes that is musically satisfying; a tune.
• "he picked out an intricate melody on his guitar"
Similar:
tune,
music,
air,
strain,
theme,
subject,
line,
part,
song,
refrain,
jingle,
piece,
Origin:
Middle English (also in the sense ‘sweet music’): from Old French melodie, via late Latin from Greek melōidia, from melos ‘song’.