la; lah
The sixth note of a major scale in movable-do solfège. Used in singing and music education.
from Italian
This song starts with 'do re mi fa so la ti do'.
The note A in the fixed-do system, corresponding to the pitch A in Western music.
This piece is written in the key of A major.
The orchestra tunes to the note A.
This piece begins in the key of A minor.
From Italian 'la', used in solfège. The fixed-do sense derives from the same origin, where 'la' corresponds to the note A.