1. Music can affect how we read facial expressions.
2. Expectations play a powerful role in how we hear and can lead to mishearing lyrics.
3. You're more likely to keep mishearing a lyric if you find the incorrect version entertaining.
4. Classical music lovers and heavy-metal fans have similar personalities.
A 2008 study found that classical and heavy-metal listeners often have very similar dispositions. According to researchers, both groups "tend to be creative, gentle people, at ease with themselves." So rethink your stereotypes!