I had this same problem trying to remember the name of Revel Rouser by Duane Eddy last weekend. Another instrumental. Tried explaining instruments, style, and did the vocalization thing like in the post (there’s a name for it, but can’t remember: anomonopea?) 5 rounds of refinement led to a bunch of cool wrong answers. Ddg found a site that I could hum the tune to, but it returned an “API Fail” error. A brief search to find song-identifying resources sent me to Google voice search, and although it was only a 19% match, (probably my lousy pitch) I was finally able to get rid of that nagging brain worm.

Not the Kennedy Jr. kind…