Definition: Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.
Input: original question: Which musical voice was sung by [Dusty Springfield]?
answer: mezzo-soprano
answer type: Musical voice.
auxiliary information: Mary Isobel Catherine Bernadette O'Brien OBE, known professionally as Dusty Springfield, was an English pop singer and record producer whose career extended from the late 1950s to the 1990s. With her distinctive sensual sound, she was an important blue-eyed soul singer and at her peak was one of the most successful British female performers, with six top 20 singles on the United States Billboard Hot 100 and sixteen on the United Kingdom Singles Chart from 1963 to 1989. She is a member of both the US Rock and Roll and UK Music Halls of Fame. International polls have named Springfield among the best female rock artists of all time. Her image, supported by a peroxide blonde bouffant hairstyle, evening gowns, and heavy make-up, as well as her flamboyant performances on the black and white television of the 1960s, made her an icon of the Swinging Sixties. Born in West Hampstead, London to a family that enjoyed music, Springfield learned to sing at home. In 1958 she joined her first professional group, The Lana Sisters, and two years later formed a pop-folk vocal trio, The Springfields, with her brother Tom.

[Dusty Springfield] uses what kind of musical voice?