Conversation so far:
What can you tell me about Celines Voice
She possesses a three-octave range, from B2 to E♭6. She once stated that she is a mezzo-soprano. However, attempts to adapt classical voice types to other forms of singing.
How did Celine Dion train her voice
Does Celine Dion have a unique voice
Yes
What about Celine Dion's timbre
Her timbre has been described as thin, slightly nasal with a raspy lower register and bell glass-like high notes.

Question: What else can you tell me about her voice
Self-contained rewrite: What else can you tell me about Celine Dion's voice besides her training and timbre