air (n)
line (n)
melodic line (n)
melodic phrase (n)
melody (n)
strain (n)
tune (n)

Definition: a succession of notes forming a distinctive sequence
Example: she was humming an air from Beethoven.

write (v)

Definition: mark or trace on a surface
Example: The artist wrote Chinese characters on a big piece of white paper. Russian is written with the Cyrillic alphabet.