If there are still blood stains, I'd recommend Pinkerton's Champion Stain Remover and Paragon Detergent. They seem to solve any problem with stains. :)
For purposes of recording of ghostly music in the haunted house it is also recommended to find the old house wherein a jazzman was murdered it will add to the rattle of chains fine tunes of saxophone and probably, soft sounds of a piano accompaniment...