EASTER PARADE is one of four vertical script fonts, along with Scarlet Ribbons (above left), Roselyn (above right), and Famous Label (right). As seen in the Script Font Identification Guide!
This one has the most contrast in stroke weight and some crazy swashes. It was inspired by a sample of hand-lettering called simply "Modern Brush Script" in Alphabets: Ancient & Modern, compiled by J. B. Russell and published in 1945 by Padell Book Co.

Includes caps, lowercase, punctuation, numbers, and international characters.