<p>There have been numerous threads on this topic. If you use the search function and “music” and/or “hook”, you’ll get plenty.</p>
<p>There are numerous high level players of conservatory quality at most if not all of the Ivys, many studying disciplines other than music. Many of these students will go on to study performance at the grad level and beyond. A number will achieve performance careers.</p>
<p>You would not be alone. Unless you have won or placed in a prestigious competition I would not see it as a major factor as you would be one of many conservatory ability applicants within the pool.</p>
<p>You state you play a rare instrument. If you define “rare”, I’d be able to qualify the instrument as being potentially a plus.</p>
<p>Good luck to you.</p>