点解我会为音乐而玩音乐

You have got the basic foundation for the piano. Therefore
you may find it easy to take up other musical instruments. Whenever you find it interesting and easy to take up
you would like to learn more. Besides
you can build up more technique as a challenge. You will feel much satisfied with your achievement. Hence
you chase for your dream of being a musician or any musical professions. It is the same as the academic subjects you take in your secondary school. You may find it interesting to put more effort on some special subjects. On the other hand
you may be bored when you study some other subjects. However
you have to equip your basic knowledge in your secondary education at the same time in addition to your musical knowledge. To my best knowledge
many musici would like to study abroad when they reach a certain levels of musical technique. If your basic academic knowledge is not up to the standard
some famous foreign musical institute or universities may not consider recruiting you as their students for further development.
参考: my experience
其实，点为之「为音乐而玩音乐」呢？ 音乐本身可是一种兴趣、是嗜好、或是职业，我相信去学习一种乐器必须要喜欢那种乐器/音乐，而你已懂得多种乐器，表示你对音乐也有一定的兴趣﹗不是吗？ 所以，为自己喜欢的东西去研习，是很正常的﹗哪「为音乐(喜欢的兴趣)而玩音乐。」有什么问题呢？这等于一些喜欢游泳的人去游水一样﹗ 而若你想以音乐作终身职业，更要多加努力﹗