This is a funny and free virtual instrument, created for the KVR Developers Challenge 2018.
The instrument can be used to produce spooky, creepy and scary tunes, for Halloween videos, silly horror games or low-budget horror films.
It includes a 2-octave organ and a 2-octave bells kit (?), both supported by a chorus of angels and demons, and it also features some ghosts and haunted house sounds in the background.
The instrument is 100% free, and it was made using only Public Domain samples.