ETA…music performance or what? If an audition is required, it’s very possible that EA isn’t even an option for the music acceptance part of this. But some colleges do have an early audition date…so check. My kid did early auditions at two schools and had those acceptances with merit aid before Christmas.
In my opinion, there is no downside to applying early action wherever allowed on your kid’s application list. The caveat being…some schools like demonstrated interest a lot…so check for that.
If your student gets accepted ED, then they simply will withdraw any pending applications or acceptances, and accept the ED offer of admission.