Yes, that's the other point of it, he says:

"Lastly I have noticed that, since becoming a parent, the rate of my song 'acquisition' has slowed significantly – basically because I find it much harder to get out to pub-sings these days. My current repertoire is something like 240 songs, so to complete the whole year I will have to learn half as many again. This is a tall order but there are so many songs that I've been meaning to learn for so long – I'm hoping this project will spur me out of song learning stasis and back into being in the habit of learning."