These names are mentioned only by Adlung, who says:

Hohlflöte 2' is also called Kleinhohlflöte or Kleinflöte ... [Praetorius] says that some also call the Kleine Hohlflöte 2' a Nachthorn, since it resounds with a horn-like sound. ... Some call this stop Nachthorn, but that is something else ... This stop is also called Kleinflötenbass if it stands at 2' in the pedal

Examples

Bibliography