Learning Greek sounds challenging. Good luck with that! The learning violin one is I think wonderful. I love the violin and have often thought about learning myself. It has such a gorgeous sound. My favorite piece of music is Tchaikovsky's Violin Concerto for Violin and Orchestra in D Op. 35. I listen to that again and again and again. Such a beautiful violin part. I've thought about buying one of those electric violins so I can practice without disturbing the neighbors. But I have zero free time right now and likely won't for a few years, so I have some time to figure out that plan. Maybe when the kids grow up and move out.