<p>Applicants report the length of time to indicate mastery and dedication to a particular interest. This also explains the use of time during HS. What many forget to include is the demonstration or validation of mastery as it relates to the applicant pool. Your observation is good and you might consider how the devotion to your study of the instrument affected your ability to participate in events/programs at the national level or in your HS. Does that help answer your question?</p>
<p>I just figured that they could infer the number of years from the application --</p>
<p>I have 3 years of All-State Band and All-State Orchestra + possibility at All-Eastern Band. + tons of music related Ec's -- it's a pain to list all of them. </p>
<p>I don't want to overwhelm the admissions officers with even more music descriptions, and I am already afraid that my resume is way too redundant. I should just leave the number of years of a certain instrument out...right?</p>
<p>To my thought yes. You have clearly demonstrated a level of mastery by listing your achievements during HS. Best of luck to you. Level of mastery isn't necessarily number of years. When you have level of mastery go with it. If you don't have it list the timeline.</p>