This is not true. Given two songs A, B, an informed human can tell whether A and B are the same song or not. Now you’ve created a UNIQUE constraint on your data, so you have a unique identifier.
It’s cute but it doesn’t mean what people think it means. It’s not a call for hedonism or short-term happiness, but the complete opposite: a call for transcendence and meaning and good deeds reflected in eternity (i.e. after you die today).