Answer:
Hi
The answer is "Paul, who sang them and played piano at family events".
Explanation:
In the 1920s, Paul's father had his own jazz band, and Paul always wanted to make some of those old songs that he used to sing along with his parents on New Year's Eve. Paul argues that he never learned to play them, since they were pretty complicated, all he did was sing them in family songs. Paul comments that when his father grew older he became the family pianist, but remember that only his father knew the real chords of those songs.