Question
Some of the signers of the Declaration of Independence invented new musical instruments. Who were they and what did they invent?
Answer
Francis Hopkinson invented the Bellarmonic that involved steel bells (https://loc.gov/item/ihas.200035713). Ben Franklin invented the armonica (https://pubmed.ncbi.nlm.nih.gov/11855437/). To listen, click on this: https://www.youtube.com/watch?v=eEKlRUvk9zc