[a. G. tremolant, ad. It. tremolante, TREMULANT.] = TREMOLO 2.
1854. [see prec.].
1876–98. Stainer & Barrett, Dict. Mus. Terms, Tremolant, or Tremulant, an organ and harmonium stop which causes the air as it proceeds to the pipes or reeds to pass through a valve having a moveable top…. The up and down movement of the top of the valve gives a vibratory movement to the air which similarly affects the sound produced.
