Add to this that with progress in recording technology a song could be recorded tens of times, and, with editing by a skillful engineer and the addition of effects and background vocals, you could get the sound needed to be successful.
加上錄音技術的進步，一首歌錄個幾十次，經過錄音師妙手剪接，再配上音效、合音，聽起來總能像個樣子。