James McNeill Whistler was a distinguished American artist during the gilded age. Most of his paintings deviated from the concepts of moral allusion and sentimentality, which made them unique and adorable. Moreover, a butterfly with a long tail was the core signature for most of his paintings. This symbol enhanced the subtle delicacy of his art and complemented his combative personality. Most of Whistler’s paintings were entitled “arrangements,” “harmonies” and “Nocturnes” to emphasize tonal harmony and highlight the distinction between art and music.