Tempo is to music as nudity is to sex, or as the weather is to the news. The mean speed is derived from √1 minute*10^-1 or the square root of three fifths of one second, √3/5" – the Universal Speed of Indecison. What's in it for *you*? If we control our mental speed, we control our mood. Emotion is simply a predictable frequency.
These 55 performances have been good enough to keep 11 of the contestants in so far. One performance amongst these will not make it. Here, the screen shots are all about speed and tempo.
These are the 72 performances wherein the public was allowed to vote. With the 72 performances, 12 people were let go. Above I illustrate which songs “made it” both by speed, below by singer.