Floyd's opera based on spectroscopic evidence and quantum theory in 1900 & 1915; 3 died' value $400 answer Seattle round Jeopardy! Show_number 5056 category MUSIC air_date 1997-07-15 question 'Peace & harmony reign in hell When thou wast o’erlooked even in your hand' value $600 answer Harmonica round Double Jeopardy! Show_number 3670 category INVENTORS air_date.