Question

the inventors microphone made concerts possible by amplifying sound. it changed how we experience live music. who is this inventor? edwin drake guglielmo marconi alexander graham bell thomas edison

Explanation:

Edwin Drake is known for oil drilling. Guglielmo Marconi for radio. Alexander Graham Bell for the telephone (not directly microphone - but early work in sound amplification relevant). Thomas Edison for many inventions like the light - bulb. The key here is sound amplification. While Edison had some work in sound (phonograph), Bell's work on sound transmission and early concepts related to amplification (even if not the modern concert - style microphone exactly, his work was foundational in audio technology which led to concert - enabling sound amplification).

Answer:

Alexander Graham Bell