MUSIQUIZ #1: Mello Cello

Welcome to the KnoxSummerour.com MUSIQUIZ Series!  Doing my part to support Music Education, I've started this series of MUSIQUIZzes to test your knowledge of all matters revolving around Music and the instruments, talent, and knowledge that create it.  MUSIQUIZ #1 is below.  PLEASE, NO GOOGLING, WIKIPEDIA-ING, or otherwise "lifelining" for an answer - - if you don't know the answer, there's always a fun "out" choice with which you can nobly bow out of the poll, so everyone please pick an answer.  Thanks for playing!