This deleted scene from the third season episode Elaan of Troyius featured Spock tuning a Vulcan lyre in the recreation room set which had been built for the scene. The scene was filmed on June 10, 1968.
Star Trek, Enterprise - Not everyone liked this series, but I did! I think they could have done better with the theme song. I have a suspicion that most Trekkies just got tired of that damn song being stuck in their head all the time!