It's the Gilbert & Sullivan comic opera where an old major general sings his "modern" song
[DOC] [TLE] I Am the Very Model of a Modern Major-General - Pinterest [PAR] The two men collaborated on fourteen comic operas between 1871 and 1896 .... 
sings the song "Major General" from the Gilbert And Sullivan comedy opera ..... 
To Life: Lin Manuel Miranda's (writer of In the Heights) surprise to his ... Hamilton
, the hit Broadway musical biography of Alexander Hamilton, helped its 
composer.