My daughter was just now looking for retreat info for her Conservatory Orchestra and when she clicked on it, she noticed that she was learning the wrong music for the chair auditions which are Tuesday, September 1st. Yep, you guessed it, I printed out the music for the top Yourh orchestra instead of her lower level orchestra. So, for the last two weeks she has been learning excerpts from Dvorak’s New World Symphony instead of her music. This is her first year playing in the orchestra and I feel terrible that she is now going to have to go into chair auditions after only two days of practicing the music for her orchestra. She has only been playing for three years and has not yet developed a ton of confidence about her playing skills in the first place. She seems to be taking it calmly, but I feel awful.
Good news is if she can play the Dvorak then she can play the other stuff.
My D learned a similar lesson from a mistake I made while she was a HS musician. Her teacher explained: that was her responsibility not mine. I suggest that your kid take control of her own practice responsibilities. (since moms can not be trusted
)
I gave my son the wrong summer reading list last summer and he arrived at school in August having read the previous summer’s selections. In my defense, I had downloaded it from the school website the week before school ended in May, assuming that by then the school would have put the correct list up for people who were getting a jump on summer reading.
Net, he is now responsible for downloading his own reading lists.
Given my daughter’s personality, anything I do for her in the future will be verified for accuracy. 
Fortunately, as Lergnom said, the music that she has to learn for Tuesday is much easier than the Dvorak.
She wins Daughter of the Month for her nice comment.
Yowie. I feel for you.
Yes @ VeryHappy. Especially since I volunteered to print it out for her - she didn’t ask me to do it. 
I have a very good friend whose daughter is an accomplished musician. For a tryout or contest this spring, the girl’s father said he could make a copy of the music. He copied the same page twice, and she didn’t discover this until she was playing.
@rosered56 - ouch!!!
I feel for you and your daughter, OP. I made a summer reading list mistake when DS was in HS and he arrived completely unprepared in the fall.
I’m glad your daughter is taking it with grace.
Update - The chair audition went fairly well and much to her surprise, my daughter is in the Violin I group. I guess I am off the hook! 
Oh thank goodness . . .
Last fall my D showed up to her audition for the college orchestra only to find out minutes before the audition that she had been practicing the wrong excerpts the whole summer! She had printed out the excerpts from the website and she didn’t know they were for the previous fall and they changed them some time late in June. They were not labeled for a specific date. They allowed her to play the excerpts she had practiced and she made it into the orchestra but she was totally freaked out going into the audition!
Organizational skills that encompass things such time management and paperwork are probably the most important skills that a musician needs to learn. Most of these are acquired after you allow your student to make their own epic fails. My(graduated MM music) D was home for a month this summer, prepping herself for a major professional competition in Paris later this year. She needs to bring 41 different pieces of music to the event and must perform the music off book. The flow chart that she pinned up above our piano looked like she was planning the invasion of Normandy.
Must have sounded new and refreshed rather than old tired and over-rehearsed! Glad it went well.
Son was an all state musician years ago and had been given the wrong music by the organization. Was given correct music when he arrived at the rehearsal site in a city hours away, maybe had a day to practice (and as a HS staying in a hotel with peers I don’t believe he was able to spend much time on it) and auditioned. Last chair. But hey, he was all state.
All’s well that ends well!