I’m going to put the odds on this strip, word for word, having been used years (decades?) ago when Batty did the “Dinkle writes a biography of Claude Barlow using nothing but stupid puns” series.
If by “as a fill in” you mean “literally just picked up the dumb and plodding storylines from the cancelled Funky Winkerbean and wholesale replaced a solid and enjoyable gag-a-day strip with literal garbage” and by “a combo of Funky and Crankshaft” you mean “removed Crankshaft altogether except for fleeting glances on Sundays sometimes.”
Of course, the standard way to find weird music for a blockbuster movie is for an actor to drive cross country three weeks before the premiere and show up unannounced at the house of some mook who wrote a biography of a random 15th century (think Harpsicords in Guardians of the Galaxy people) composer and ask that guy if he happens to know of any weird songs. And then (spoiler alert, I’m sure), hire that guy and his jazz band composed entirely of Benjamin Buttons to drive back across country and record the entire movie score. In three weeks.
Seriously. All the “just enjoy the comic” folks: What do you enjoy about this? It’s a tedious as listening to my grandparents talk about homeowners insurance policies.
“This guy’s music is unlistenable and f’ing HORRIBLE…I must have it for a 200 million dollar movie!”