You name it, I've listened to it. I tend to have determined a few ELEMENTS of the music that I like, much much moreso than the specific genre. I've found many people who are very passionate about music are this way. I love music with energy and fire. I love music that takes you on a wild ride where you don't know where you're going next.
By the time a young gymnast turns 5 years old, he or she can master more complex gymnastics skills if regular training and classes have been going on for a few years. Physical maturity, practice and good teaching will allow older children to master impressive gymnastics moves on all the equipment.
Gymnasts must be 16 years old or turning 16 in that calendar year in order to compete in the Olympics or other international meets. There is no maximum age. This age limit has been raised a few times and is controversial because many of the best gymnasts in the world are below 16 and thus unable to compete in the Olympics.