Thomas plays Bass?

Yes, in their November concert, Thomas played the bass since they needed another bass player and he volunteered.  Here are some pictures to prove it!  The end pin on the bass he was playing kept slipping, so it was hard for him to keep the instrument upright.  Because of that, I think he looks tiny, playing a cello that is huge!  Check it out! (Unfortunately I couldn't do anything about the other bass player sitting in front of him.)