Faris comments that in "Orphée aux enfers" Offenbach shows that he was a master of establishing mood by the use of rhythmic figures. Faris instances three numbers from the second act (1858 version), which all are in the key of A major and use identical notes in almost the same order, "but it would be hard to imagine a more extreme difference in feeling than that between the song of the King of the Boeotians and the "Galop"". In a 2014 study Heather Hadlock comments that for the former, Offenbach composed "a languid yet restless melody" over a static musette-style drone-bass accompaniment of alternating dominant and tonic harmonies, simultaneously evoking and mocking nostalgia for a lost place and time and "creating a perpetually unresolved tension between pathos and irony". Mellers finds that Styx's aria has "a pathos that touches the heart" – perhaps, he suggests, the only instance of true feeling in the opera.