The idea is simple enough. Create a piano with 6-8 cages, add cats. Play piano, listen to cats yowl as sharp spikes are driven into the captives’ tails. Attention deficit disorder is now cured. At least that is how it could be understood in present times.
Strictly speaking, Hausu should not belong to this list. However, I could not resisting including Hausu’s House of Horrors with its fantastick and magickal Cat and Piano. Please drop a line or two if you have any suggestions for films that include Cats, Pianos and other suchlike.