Gilbert and Sullivan the other's, and partly caused by the opposing personalities of the two—Gilbert was often confrontational and notoriously thin-skinned (though prone to acts of extraordinary kindness), while Sullivan eschewed conflict. In addition, Gilbert imbued his libretti with "topsy-turvy" situations in which the social order was turned upside down. After a time, these subjects were often at odds with Sullivan's desire for realism and emotional content. Also, Gilbert's political satire often poked fun at the wealthy and powerful whom Sullivan sought out for friendship and patronage. Gilbert and Sullivan disagreed several times over the choice of a subject. After both "Princess Ida"
Gilbert and Sullivan many of which were familiar from European opera (and some of which grew out of Gilbert's earlier association with the German Reeds): the heroic protagonist (tenor) and his love-interest (soprano); the older woman with a secret or a sharp tongue (contralto); the baffled lyric baritone—the girl's father; and a classic villain (bass-baritone). Gilbert and Sullivan added the element of the comic patter-singing character. With the success of "H.M.S. Pinafore", the D'Oyly Carte repertory and production system was cemented, and each opera would make use of these stock character types. Before "The Sorcerer", Gilbert had constructed his plays around the established