An electronic musical instrument with two projecting electrodes?

Ineed someone to describe what they mean in the instructions !

Match the description to the term. 1. framework of a short story narration 2. main idea of a paragraph plot 3. connectors between sentences assonance 4. sentence completers setting 5. repetition of vowel sounds that are followed by different consonants complements 6. time, place, culture in a story run-on sentence 7. conversation between characters in a story transitional devices 8. relating of actions and incidents in a story topic sentence 9. two or more unrelated thoughts dialogue

1. which one of the following is not one of the instrument families in the standard symphony orchestra? strings woodwinds brass sopranos