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.
You can begin gymnastics at almost any age you develop an interest, but you may want to stick with recreational gymnastics if you start older than 12. Starting later than 12 years old may not give you enough time to develop the skills you need to go up against people who have been at it since they were toddlers. Additionally, there are maximum ages for gymnastic competitors.