I haven’t had many outdoor gigs recently, but when I do, I’m generally under shade or a tent to protect my instrument. If you’re worried about the glare from the sun or stage lights, a matte screen protector can help a lot! There’s also screen brightness to worry about too. I’ve been fine using my iPad outside, but I do like to keep my screens somewhat dark. The new iPad Pro does go up to 1,000 nits, brighter than the older models!