例如，一个到芝加哥巡演的乐队只邀请他最铁的粉丝参加一个秘密的秀，或者提供他们优惠商品。

For instance, a band touring in Chicago might invite only its biggest fans there to a secret show, or offer them premium merchandise.

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20世纪20年代晚期，他离开芝加哥，在几十个巡回乐队中演出。

In the late-1920s, he left Chicago and performed with dozens of traveling bands.

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