The Recent Revolution in Organ Building Being an Account of Modern Developments
CHAPTER IV
Pneumatic and Electro-pneumatic Actions--Tubular Pneumatics--Division of Organs--Sound Reflection--Octave Couplers and Extensions
The Recent Revolution in Organ Building Being an Account of Modern Developments
Pneumatic and Electro-pneumatic Actions--Tubular Pneumatics--Division of Organs--Sound Reflection--Octave Couplers and Extensions