Hey Van, great intro. It is full of excellent imagery and flows very well into the next paragraph.
However, during my childhood and teenage years, I have always hated music.
Change have to had, the tense doesn't match the beginning of the sentence. Maybe try removing "have always" and keep it simple.
However, during my younger years I hated music.
Everyday , he reminded us that a good musician follows the score, but a better musician follows the conductor and anticipates the music. He also taught us to put thought behind every breath and every sound.
Your tense doesn't match up again. I also tried to tighten it up a bit. They are great sentences but felt a bit awkward.
Once I changed my attitude, I started to notice the trumpets' majestic fanfares and the French horns' mellow timbre; I marveled at the intricate weavings of melodies and harmonies, beginning to gain an appreciation for the works of composers and conductors.
Consider breaking this sentence up.
Once I changed my attitude, I started to notice the trumpets' majestic fanfares and the French horns' mellow timbre. I marveled at the intricate weavings of melodies and harmonies and began to gain an appreciation for the works of composers and conductors.
Although I am no longer in Mr. JKL's "Spartan" class, I carry his tenets with me as I try to adapt to a new band, committed to playing with the same dedication and passion he had taught me.
You have some work to do with your tenses, but otherwise I think this a great essay. By the way the abbreviation of your conductors name, Mr. JKL, makes me think of Dr. Jekyll. I couldn't help but snicker every time.
Good luck.