We get to stick around with the Cantor because we get to be a part of a special ceremony in a few weeks, our consecration. It is so special, because there was once a time when we couldn't freely sing out that we were Jewish. Since our consecration will be on tubishvat, we learn a song about the trees through each season.
Cantor brings out a Torah for us, and we realize, it's made out of wood, which comes from trees! We talk about what else trees can give you, including paper, shelter, and things to build houses with. As we notice, trees can give us a lot of stuff which we will end up having a song about.