As an amateur musician...I don't think so. Big heavy binders fall off music stands easily. They get stuck on page turns. The music stand itself is either very top-heavy (for the professional ones in concert halls) or it's flimsy and won't hold a heavy binder (for the folding travel music stands). These are all the last qualities you want when working on an extremely expensive, precise piece of equipment.

One of the most useful smartwatch apps I got was a metronome app, simply because it's hands-free. I wouldn't spring for consumer Glass (simply because it was an order of magnitude more expensive than a smartwatch), but it's even more useful for musicians. Imagine never needing to do a page-turn again!