Conversation so far:
What was Haden's musical style?
In addition to his lyrical playing, Haden was known for his warm tone and subtle vibrato on the double bass.
Who or what is his style influence by?
CANNOTANSWER.
What genre did Haden play?
"combination of folk song, avant-garde sensibility, and Bach-like classical harmony.

Question: Is there anything significant about Haden's musical style?
Self-contained rewrite: Is there anything significant about Charlie Haden's musical style?