Two open vowels, no hard edges. Ava is one of the softest names to sing.
Why a name lullaby works
A baby's own name is the first word that ever means anything. Long before language, babies orient to the sound of their name sung in a warm voice, it is attention, safety, and love in one word. A lullaby built around that word turns the strongest word Ava knows into the signal that the day is done.
A bedtime tip for Ava
Sing or play the same song at the same point in the wind-down every night, right after the feed and just before the crib works well for most families. Within a couple of weeks the opening notes alone start to settle her. Consistency, not variety, is what makes a lullaby powerful.