那是钢琴的黄金时代，琴键间流淌着爵士乐和雷格泰姆音乐，施坦威一年生产的钢琴超过6000架，是现在的三倍。
It was a time when jazz and ragtime flew off the keys , and Steinway was producing more than 6000 pianos a year , triple what it makes today .
雷格泰姆