this week I discovered a new very fascinating instrument made by Schiedmayer. It concerns a 2 manual harmonium, which is currently being restored by Klaus Langer.
The instrument is for sale! contact info: http://www.harmonium-werkstatt.de/
So, what is interesting about this (art)harmonium?1. Double Expression
First of all it has a double expression, but unlike Mustel 2-manual harmoniums, this mechanism still controls the balance left-right (instead of upper manual - lower manual).
The splitpoint e/f is at the same octave position as a regular pressure (art)harmonium. (2-manual harmoniums by Mustel have this "teilung" an octave lower)
The big advantage of this unique system is the fact that when you play coupled manuals this harmonium functions as a normal artharmonium. You can play the repertoire on it!2. Registers
it is one of the biggest harmoniums I have ever seen:
9 ranks in the bass, 11 in the treble.
=> a complete undamaris 8' (most of the times this register is only available from second C to e)
=> 2 harpe eoliennes 8' !!!
=> you can choose the 2 ranks of the Vox Angelica separately: one rank is still named "vox angelica" the other one "Gamba"
in total this instrument has 10 x 29 + 14 x 37 = 290 + 518 = 808
reeds...3. Extra keys!
this harmonium has 5 additional keys in the treble, extending the range to high F!4. a Dominator?
This instrument was probably built around 1920. Although no "dominator" name tag is to be found, there are many similarities:
-same registers (some different names, f.e.: Basstuba 16' instead of bourdon 16')
-same wood/keyboard design
-same heel levers, double expression, prolongement, metaphones etc.
-same design of knobs
-presence of a little switch to make the Basstuba 16' only work in the lowest octave.
some other differences which were not yet discussed:
-no fortes expressifs
-no 4' in the treble
-some registers have a mechanism to draw them "half". This way the register will sound softer = sourdine ("piano" version of the respective register)
-no "prolongement piano"
I have never seen another harmonium like this one
I will post pictures of the case once I receive them.