As the name implies, the early bird catches the worm. Buying tickets before the official start of the performance can not only offer preferential prices, but also choose the location.

This concept comes from abroad. Many people are used to buying tickets on the day of the performance. In foreign countries, many popular performances have to grab tickets more than one year in advance, and they are very popular.

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Early bird tickets are also called early bird discount tickets. This concept comes from the airline ticket promotion means. General airlines will often launch some flight tickets, and you can enjoy a very low discount if you book about 2-4 weeks in advance. The earlier you book, the lower the price. This is called "early bird discount ticket" abroad.

It is also called blind bird ticket in performance ticket sales, and sometimes it is called separately. It's a round of ticket sales that started a few months before the performance. It is characterized by a small number of votes and low fares, provided that the early bird tickets do not disclose the lineup (content) or several.

References:

Baidu encyclopedia-early bird ticket