The full name of the type organ we have got, is Raffin Concertorgan 20 / 78. The numbers 20 / 78 mean that the organ has got 20 tone intervals and 78 pipes, of which 11 metalflutes.
This organ has 6 switchable registers, namely:
| Register 1 | = | 11 Concertflutes |
| Register 2 | = | 11 Bourdonflutes |
| Register 3 | = | 11 Violins |
| Register 4 | = | 11 Clarinets |
| Register 5 | = | 11 Wooden Piccolo's |
| Register 6 | = | 11 Quinte (metal flutes) |
Scale:
Bass: f a# c'
Accompaniment: d' d#' e' f' g' a'
Melody: a#' c" d" d#" e" f" g" a" a#" c'" d'"
This type organ has built in four extra valves, so that you can connect puppets or bells etc. Therefore you have to introduce four extra holes in the test slide.