[mtinkerhess]

It's a standard part of musical training to be able to read a part written in either concert pitch or in your instrument's pitch, or even to be able to transpose on sight into any key. It's not easy but learning to do so pays off when you're on a gig and the singer insists on playing Lush Life in B natural.

[cpressey]

We can debate how large an obstacle it is, or whether learning to overcome it is valuable, but clearly it is there, even if it's just an annoyance. I just think it would be really nice for (e.g.) a clarinetist to be able to sub in on an alto sax part on sight without having to go the extra mental work of "Ah, right, up a perfect fourth --"