More details about the animation and the music. It seems that the brain has visions that are made in 2D and the short will have a song.
Quote:
And given that Inner Workings was supposed to blend CG and traditional hand-drawn animation as it told a fast-paced tale ... Well, that meant that this animated short quickly became an all-hands-on-deck situation. With not only WDAS veterans like Mark Henn & Dale Baer lending their expertise to this project but also talented newcomers like Ami Thompson. (According to Matsuda & Lurie, Thompson’s “Little Golden Books” -inspired versions of Paul’s brain visions are some of the comic high points of this new short.)
Source: http://www.huffingtonpost.com/jim-hill/walt-disney-animation-stu_b_10530208.htmlQuote:
Matsuda recreated the graphical look of those layered acetate transparencies in his short along with an ’80s vibe that’s pushed and theatrical. His influences were Jacques Tati, Wes Anderson, Disney’s Ward Kimball and Bruno Bozzetto, whose “Grasshoppers” short inspired the 2D brain visions of Paul winding up dead after every imagined risk he takes.
Quote:
“Inner Workings” also benefited from designer/animator Ami Thompson, a visual development apprentice on “Zooptopia,” who’s been promoted on a soon-to-be-announced Disney feature. Her character designs demonstrated great versatility, particularly with the 2D brain visions made with TVPaint software.
Meanwhile, Ludwig Goransson (“Creed”) composed the highly synthesized ’80s type score and wrote the infectious Brazilian-sounding song, “California Loco.”
Source: http://www.indiewire.com/2016/06/inside-out-disney-inner-workings-short-animation-leo-matsuda-1201690071/