Do not, I repeat. Do not wait until the last minute to get things done, it will bite you in the butt in the long run. Like practicing for your solo/soli in the concert that seems to give you trouble. If you simply cannot do it the day of the concert, that evening, don't play it. It may suck then but it would benefit the team (band) more.
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French Horn Player's Manual
HumorFor all of the French Horns wish they had seen a manual before they started playing. Also rules for regular life included. Choo-choo! All aboard the Life Express, one ticket only! You there climb on and enjoy the ride!