Mine is that instead of ponies, the Mane 6 are school girls in their junior years. They joined the music club and dubbed the Elements of Harmony. Each of them are master of their own intrument. One particular being Fluttershy who plays tambourine, an instrument that is unlikely to shine. Despite that, they have won 3 awards consecutively in the battle of the band. Along the way, their friendship started to deteriorate the more they develop their skills up to professional level, completely dominating other school band.
After graduating into their senior years, they each went to separate high schools, Fluttershy in Ponniville High, Applejack in Applesalsa High, Rarity in Canterlot High, Rainbow Dash in Dash Academy, Pinkie in Rockville High and Twilight in Starswirl Academy. The story follows fluttershy and her new friends into beating the other Elements of Harmony and by proving that a percussionist is just as important in a band.
First they will beat Applejack, then Rarity, then RD, then Pinkie, again Applejack, then lastly Twilight. Thus, strengthening their friendship slowly and changes their way of playing music.
What are your story of MLP? Any version, anthros or anything would be fine.