One of my very favourite BHFs, only seven minutes long and dating from well over 100 years ago. I love stories about debunking fraudster psychics (the RKO B-movie from 1950, BUNCO SQUAD, is a fantastic little noir/cop drama/borderline horror about a police unit that raids seances) and IS SPIRITUALISM A FRAUD? is evidence that those canny Edwardians were on to the charlatans rather more effectively than we are today.
Have loved this film ever since I saw it on the BFI's R.W. Paul DVD collection. Hope you like it too:
https://m.youtube.com/watch?v=kIgen_R1nqc
I saw this long ago, but don't think it had musical accompaniment then. An amusing oddity.