Grade 1 Chromatography Paper 6 x 0.75 Inches for Laboratories, School, Pigment Separation and Experiments [Bag of 50 Strips]

Congrats! They may or may not give you a folder (I imagine they would especially for a youth orchestra), but I think it’s nice to bring one just in case if you have a spare. I bring a water bottle in case it’s not easy to get to water at break. Also, a tuner (having the TE Tuner app on your phone will be good enough) since you will get sharper as the rehearsal goes on. For getting the water out of keys, swab when you can plus I use chromatography paper strips (instead of cigarette paper or a dollar bill). You can cut the strips in thirds and one package will last basically forever. https://a.co/d/05dvau6J Also, a pencil for your folder and one for your case (in case the folder pencil gets lost).