Man and woman are about to get married but the husband has a son from a previous marriage and the woman has daughter from a previous marriage. And one day they are moving in together in the house. The girl was playing piano (just to show that she is better than her half brother). She ends with playing and the boy applaud as "bravo, bravo" and he sits down on the piano. At first he pelted 2-3 notes and they have no clue he is good, but after he starts to play like a maestro. Her mother said something like "he is way better than you".
Anyone remembers?