Background Pony #2E64

Far as we know, the big scaly-tailed long-faced sirens were their forms when they wielded power. This is an imagining of those same overgrown seaponies without their gems. Still fishy-tailed, but in a far more adorable and cuddly way. If Sonata were to return to Equestria now without her gem, this would be the form I'd see her taking.