Jazz vampires was a type of supernatural species, who fed on jazz musicians. Although feeding in almost the same way as ordinary vampires, who lives on magical energy, they are probably not related.
Only three jazz vampires are known to have existed. As human girls all three had attended the same school (Cosgrove Hall) and had been tutored by miss Patternost, a jazz enthusias. They became jazz vampires after attending a jazz concert at London’s Café de Paris, the unfortunate night in 1941 when the place was hit by a German bomb.