yes, they sell one at sandy cove (not sure where if sandy cove is closed), but
definitely do not count on finding it! i desperately wanted one for my mom and i had a ridiculous wild goose chase for it in april. ri-dic-u-lous!!! the day we arrived, i was on my way back from the pool and saw one in sandy cove. i had no money with me. i "hid" it behind the other cd's. i came back later that day and it was sold. i checked back twice a day every. single. day. for the rest of my 8 day trip and they never had it. the rpc cm's could not get it, they had me asking the other gift shops, the orchestra themselves, etc., and no one had it. one of the waitresses at mizner's apparently is dating one of the band members, and another waitress assured me she would be able to have her get me a copy by the following day- and even she could not get me one. as luck would have it... literally 15-20 minutes before our limo to the airport arrived, i did one final check- my third of the day- and lo and behold, they had just gotten about 10 in!

anyway, i believe this is the number for wdw merchandising: 1 407 363-6200, i believe they told me at sandy cove that they would have it.
now after that whole story, you will probably be there and every day of your trip the gift shop will probably have twenty copies!

good luck and i hope you find it!