Oboe reeds are made of two thin, flat pieces of cane bound together at the base with a cork tube. Many professional oboists make their own reeds, but reed-making is time-consuming and requires special equipment. It’s no wonder, then, that some professionals and many amateurs and students purchase reeds made by professional makers. Even buying a finished reed, though, doesn’t mean that an oboist can just play perfectly with it from the start. Some reeds need additional adjustment and tuning over time.
Soak a sharp reed in water for 20 to 25 minutes to see if the opening becomes a little larger. This will bring the pitch down.