How music listeners can fill the industry's "value gap". From the 1940s to the 1960s, countless millions of people would put a dime in a jukebox to have a single piece of music played for them, one time. If they wanted to hear it again, or to play another song, they'd put in another dime. (音乐听众如何填补行业“价值缺口”。 从 1940 年代到 1960 年代，无数人会在自动点唱机中投入一角钱，播放一首歌曲一次。 如果他们想再次收听或播放另一首歌曲，他们会再投入一角钱。)