Blind leading the blind?

The guy that sits next to me at work plays trumpet in a band. It's not like a band like Chicago or anything, but he plays in a big concert band playing stuff like Sousa marches and patriotic songs. Anyway, he was telling me that his band just got some new members, an older husband and wife duo. He said they are both really great players and that the wife who also plays the trumpet happens to be blind. So when they get new songs to play, she can't read the sheet music, but if she hears the song once or twice, she can figure out the notes and play the song back from memory. Pretty cool. So anyway, I guess he is in charge of distributing the sheet music, so he sends the woman the mp3. In his email he says whatever he needs to say and then asks me if it's wrong to close with "see you tomorrow". He decided not to go that route, but I thought it was probably fine, but still not worth making that oversight. Wow, that was a really bad unintentional pun. Anyway, he closed with "I hope this helps". She responded back with "Thanks Dave, See you tomorrow." Amazing.