半开麦垫音是假唱么？聊聊我的不同理解，以及五月天被执法前景

关于五月天被指假唱的事情目前仍在持续讨论，其中有一种声音认为可能存在垫音、半开麦等情况，那么这些情况算不算那假唱？执法部门认定的难点在哪里？似乎很多人产生了误解。

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