Answer :
The instrument that started the theme in the opening fanfare "Sunrise" from Richard Strauss' Also Sprach Zarathustra, is D. violin.
What is a theme?
It should be noted that a theme simply means the underlying message that is illustrated by the author in a literary work.
In this case, the instrument that started the theme in the opening fanfare "Sunrise" from Richard Strauss' Also Sprach Zarathustra, is a violin.
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