The broadly worded Iranian overture did not address concerns about the country's nuclear program, and officials of President Barack Obama's administration say that is disappointing.

VOA: standard.2009.09.11

No.He just keeps that same E-flat chord for about six minutes at the beginning of the Overture to Rheingold, and on the basis of that you know there's going to be a very long opera.

没有莱茵的黄金序曲的前6分钟全部是E大调和弦，由此可见这是一部非常长的歌剧。

耶鲁公开课 - 聆听音乐课程节选