Walt Disney has given the Pastoral Symphony a mythological setting, and that setting is of Mount Olympus, the abode of the gods.
And here, first of all, we meet a group of fabulous creatures of the field and forest, unicorns, fauns, Pegasus, the flying horse, and his entire family, the centaurs, those strange creatures that are half-man and half-horse.
And their girlfriends, the centaurettes.
Later on, we meet our old friend, Bacchus, the god of wine, presiding over a bacchanal.
The party is interrupted by a storm, and now, we see Vulcan forging thunderbolts and handing them over to the king of all the gods, Zeus, who plays darts with them.
As the storm clears, we see Iris, the goddess of the rainbow. And Apollo, driving his sun chariot across the sky.
And then Morpheus, the god of sleep, covers everything with his cloak of night, as Diana, using the new moon as a bow, shoots an arrow of fire that spangles the sky with stars.”
―Deems Taylor
This is a 1980s PHOTO COPY on Regular Paper from DISNEY ANIMATION RESEARCH Dept. and NOT ORIGINAL 1940s MODEL SHEETS
Peter Pegasus (also known as Baby Pegasus or Young Pegasus in certain sources) is one of the main protagonists in "The Pastoral Symphony" segment of the 1940 film Fantasia.
He is presumably the youngest of his siblings, and bears the most resemblance to his parents, having his father's coat and his mother's mane, tail, and eye color.
He's a playful little foal, eager to get in on the fun, and fly with his family.
The character's popularity within the Disney studio lead them to consider utilizing him in future Fantasia segments before work on any Fantasia followups were cancelled.
Some of these proposed pieces were "Invitation to the Dance" and "Flight of the Bumblebee