Octavia Philharmonica has had an interesting life since becoming the Bearer of the Element of Honesty. Between her music studies, her jam sessions with Vinyl Scratch (the Element of Magic) and the other Ponyville musicians, and her attempts to learn more about friendship, she's got a lot on her plate. Fortunately, she seems to be doing well, and her attempts to integrate into the Ponyville community have been largely successful. She is even invited to go to a magic show by some of her friends, an invitation which she happily accepts.
Unfortunately, during the show, a traveling showmare and a purple-coated scholar get into a fierce argument over which of them is the better mage, and Vinyl's attempts to mediate only make things worse. When Trixie Lulamoon and Twilight Sparkle refuse to back down, they retreat to the Everfree to settle things and accidentally antagonize the dreaded Ursa Minor! Their only hope for rescue is the Element Bearers, who alone have mastered the magic of music and friendship to defeat those that would harm Equestria. Octavia will have to work with Vinyl and the other Elements to save the day once more. To accomplish this, though, she'll have to use all she knows about music... and about friendship as well.
A Cadanceverse story, and the sequel to 'The Music of Ponyville'. However, you don't need to read that one to understand this story.