[aˈtɛmpo ruˈbaːto]; "free in the presentation", literally Italian for "stolen time"
"Rubato must emerge spontaneously [...], it can't be calculated but must be totally free. It's not even something you can teach: each performer must feel it on the basis of his or her own sensitivity. There's no magic formula: to assume otherwise would be ridiculous".
Just reinterpreting classic pieces they way we like it.