They were founded in 1991, but did not use a logo until 1993.
1. 1993 "HLP"
Logo: On a blue background, we see the letters "HLP" slide in, then the words "Hal Leonard" in black and "productions" in white fade in.
FX/SFX: Cel animation.
Animations: The HLP sliding and the words appearing.
Music/Sound: A cartoon-style car-parking sound when HLP slides in (from the Nick Jr. Stars ID), followed by two accordion notes (from the Spiffy Pictures Logo) when the words fade in, the first one for "Hal Leonard" and the second for "productions."
Availability: Seen only on the VHS and 10th Anniversary DVD of "I Need a Vacation!".