Even though the four girls seems to be a bit nervous about leaving the school behind and entering society by going to the same college, there is a reason to feel like that. The fun memories they had together in the Light Music Club bonded the friendship together. That friendship allowed the girls to decide on going to the same college to learn, play, and socialize together in their eternal and happy friendship.
After I looked at this episode, it reminded me of my senior year. I had fun with my friends when I went on a field trip with the bands or the time I socialized in the lunchroom. When graduation came, I know that the real world is going to be different and my friends would be going separate paths. Three years later, I am still surviving college rather well with a good outlook in my life.
For the girls, I think they will have an even brighter feature considering that they are together. It makes me wonder if they going to continue having a band right into college. They most likely will since they enjoy making music along with drinking tea and eating cake. As for Azusa, there is no doubt that she is going to miss them. Nevertheless, I think she will survive considering she still has Ui and Jun as her friends. Later on, she can apply to the same college once she graduates and reuite with her other friends.
The tape recording of all their music is very significant at the end of the journey as a memento. This allows them to treasure the fun memories through their songs and give inspiration to the newcomers who want to carry on their legacy.
In the end, these kinds of moments is what caused whole perception of K-ON being just a moe comedy change into something of a life lesson. Strong and good friendships is what makes life a beautiful thing and the girls are living proof of it. They are ambitious with their studies while having a fun time. In my opinion, this is what friendship is all about and there is no doubt that the last episode will leave us with an emotional and joyous impact once they graduate and start their new chapter in their life.