Although those half-dozen tunes didn't make the film, you can hear several as bonus features on the DVD/Blu-Ray release of Coco that arrived this week. Hearing those artful songs might prompt the question: Why didn't they make the movie?
We just made the bold choice one day: okay, what if it's not a musical, but it still has a lot of performance in it?
"I pivoted for a few reasons, the main one being that the film felt like it was trying to be something different than what we were trying to force it to be," says Unkrich, who worked on Coco for about six years after directing Toy Story 3.
"I realised that the film wanted to be music-filled and have a lot of music and performance in it, but the breaking out into song, to me, was feeling like a hat on a hat — it felt like an extra element," continues Unkrich.
"We just made the bold choice one day: okay, what if it's not a musical, but it still has a lot of performance in it? And that was the path we went down, and it felt like the right movie to be making."
(One obstacle was that the film was about a boy whose family didn't allow music — a significant challenge, Unkrich noted wryly, within a musical.)
He says he's not "a Broadway guy" but relishes the subversive tunes from shows such as Robert Lopez's Avenue Q" and The Book of Mormon. And after he worked with the Gipsy Kings on a Spanish-language number for Toy Story 3, he especially saw opportunity for a full Pixar musical.
"I imagine if Pixar was to make a musical, that it would be kind of out of the box in the way that (those two Broadway shows) are," Unkrich says.
"So I can still see us doing something some day. We just have to find the right project."