The trippy music that they play at the ENDING to the classic Scooby-Doo show has a high-pitched, wavery melody. I’m not sure the responsible musical instrument. I got into a fairly unspirited argument with a friend about it, as I guessed it was a “musical saw”. Is this right? Are musical saws uswed in anything else outside of the movie “Delicatessen”?
Most of the time, the instrument used to make the “musical saw” sound is a theremin.
IIRC, the Beach Boys used one on * Good Vibrations*.
You can put a virtual theremin on your computer.
The large letters you put “ending” in make it appear that the show uses two different songs. Although Scooby himself went through at least six songs, they were never used in combination (that is, different at beginning and at end). The incarnation of Scooby that I believe you are thinking of is The New Scooby-Doo (whose theme song began, “We’ve got it all together for a brand-new show, Scooby-Doo is here again, away we go” and featured the chorus “Come on, get involved till the mystery is solved/Hang around for Scooby-Doo”). Both the opening version (with lyrics) and the closing (without) I believe have the high-pitched, wavery melody you speak of (over the phrase which begins, “Come on…”)
The bridge of “James K. Polk” by They Might Be Giants uses a musical saw.