My daughter is learning the chromatic scale on oboe. When she plays G and G# these two notes sound the same. She asked her music teacher at school (he is a good musician but I wouldn’t say he’s an oboe expert). He guessed that something might be stuck (like a cork?)
I don’t know if this is even a possibility. She doesn’t have a lesson with her actual oboe teacher for a week, so I thought I’d try to see what I could find out on my own. Any reed playing musicians who want to take a tab at this?
Flute/saxophone player here. Is she getting a G or a G# for both notes? If it’s G, then the pad is probably stuck to the G# hole, so when she presses the G# key the hole isn’t opening. This can probably be fixed simply by lifting the hole cover manually. It may be necessary to clean the pad. If both notes are G#, then the hole is probably stuck in a partially open position. I think this is less likely, as an air leak in this position would make it difficult to play lower notes as well.
Thanks. Both notes are coming out as G, so Little Java will try what you said. 
Q: What do you get when 2 oboists play in unison?
A: A minor 2nd.
I’m sorry. I couldn’t help myself. And it’s the only oboe joke I’ve ever heard. Little Java may find it useful in the future. Or maybe she just better get used to it because she’ll be hearing it a lot in the future.
Please don’t smite me.
2nd oboe joke.
Definition of oboe: “An ill wind that nobody blows good.”
Another flutist checking in (although I tried to play the oboe one summer…it was bad). Anyways. Don’t spend $5 for the special cleaning wipes, buy rolling paper (ZigZag). Works just as well.