Undergraduate / creating music - Common App 150 word essay [6]

I've written a little over 150 words, but my main concern is whether the content is too broad for the short essay and if I should use this as a springboard for my long essay.

What makes creating music so appealing? For me, it is its dynamic and expansible nature of discipline. When I first started playing piano at the age of six, I never once thought the instrument would become such an integral component of my life and schooling. Many hours of arduous practice, however, have reversed that outlook. Looking back, I have found an intangible link between the effort spent in practicing and my work ethics in academics and extracurricular activities. Practicing, to me, is not a chore or about "getting the job done"; instead, it serves as a path that allows me to better a skill that I have already started to acquire. Analogically, an active pursuit of knowledge is, in my opinion, the optimal method of learning. I believe that if I am to start anything, I am going to finish it - not create a half-baked product that will not only disappoint others, but also myself.