<p>My piano teacher’s English isn’t that great, so the letter isn’t very good.</p>
<p>Is this a problem?</p>
<p>You would think that any reasonable person would overlook this type of issue. I am not at all sure how music schools assess letters of recommendation. I would suspect the main thing they are looking for is confirmation that you are a serious, teachable student, and that you have mastered basics and have potential. If your letter includes this type of assessment, I think you will be fine. If the teacher also throws in something like “I have taught x number of students in my career and this student is the best etc” that would certainly be icing on the cake.</p>
<p>In my line of work I do need to periodically look at letters of recommendation, and almost none of them have solely influenced my decisions. The two notables were one that said almost nothing, and the other one that said something like “I guarantee this person will leave your place better than when she arrived. You would be stupid not to take her”. I suspect music schools view letters of recommendation in much this same way.</p>