The Aldebaran Music Academy is an academic institution dedicated to musical skills, located in the Aldebaran system. Miles O'Brien was to attend the Academy, coerced by his father, to study cello. He turned down the place to join Starfleet as enlisted personnel. (DS9: "Shadowplay")
According to the script, "Aldebaran" was misspelled "Aldeberan," the correct spelling was used in the episode's closed captioning.