A friend has asked me what is the source of this Halloween-type musical

Variations are used to cue a spooky mood in countless songs and films,
here's just one example:

The article linked to below points to two possible sources - the silent
movie composer John Stepan Zamecnik, and the *Remick Folio of Moving
Picture Music vol. I*, published March 24, 1914, by Jerome H. Remick & Co.,
New York and Detroit and compiled and edited by J. Bodewalt Lampe.

I'd like to see the sheet music from the folio. Is there a prior source in
classical music, or a recording from the early 20th Century?