Melody (4)
'melody' is the definition.
(I know that melody can be written as tune)
This is the entire clue.
(Other definitions for tune that I've seen before include "Adjust (car engine); air" , "Adjust a radio receiver to a frequency" , "Improve quality" , "Of engine, adjust to run smoothly" , "Melody; adjust (engine)" .)
'melody' is the definition.
(air can mean a tune or melody)
This is all the clue.
(Other definitions for air that I've seen before include "Of which 78% is nitrogen" , "- - on a G-string" , "Bearing, manner" , "Musical composition" , "If it's hot, it's boastful" .)
'melody' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for music that I've seen before include "Pleasing sound" , "Sonic art" , "A score represents it" , "graces?" , "Strains" .)