midnight
So , in spite of Maestro Appenzelder , Miss Self-Will had really determined to leave the city . Her hasty information that the Emperor did not wish to hear the choir at noon somewhat relieved his mind ; but when , in answer to his no less hasty question about the singing at the late meal , the answer came , `` What is that to me ? '' he perceived that the sensitiveness which yesterday had almost led her to a similar step had now urged her to an act that might cause Appenzelder great embarrassment , and rob her forever of the honour of singing before their Majesties . While the very portly Frau Kastenmayr went panting down the narrow stairs , Wolf again stopped Barbara with the question why she so carelessly trifled with what might be the best piece of good fortune in her life , and shook his head doubtfully as , tossing hers higher , with self-important pride she answered low enough not to be heard by the widow , `` Because a ride through the green woods in the month of May is pleasanter than to sing into vacancy at midnight unheeded . '' Here the high , somewhat shrill voice of Frau Kastenmayr , who felt jealous in her brother 's behalf at hearing Barbara whispering with the young knight , interrupted them . Her warning , `` Where are you , my darling ? '' made the girl , with the skirt of her riding habit thrown over her arm , follow her swiftly .