Conversation so far:
What can you tell me about Tarja Turunen's legacy?
Turunen's voice is described by critics as remarkably powerful and emotional.
Sometimes it is stated that her voice is too trained or operatic for metal music.
What else is said about her voice?
but even critics who do not like classical voices admit that her voice suits the kind of metal songs she sings unusually well.

Question: What type of style did she have?
Self-contained rewrite: What type of style did Tarja Turunen have?