This fits Fluttershy all too well. Both Metaphorically and literally. Also one of the few times where Twilight isn't forced to beatbox.

Applejack - Alto 2 (Lowest part)
*Bass Line
Twilight Sparkle - Alto 1 (Second Lowest Part)
*Harmony 1
Rainbow Dash - Soprano 2 B (Third Lowest Part)
*Harmony 2
Pinkie Pie - Soprano 2 A (Third Highest Part)
*Harmony 3
Rarity - Soprano 1 B (Second Highest Part)
*Harmony 4
And Fluttershy - Soprano 1 A (Highest Part)
*Lead Vocals

#Mane6Acapella
#Fluttershy
#MuseScript