Sometimes you need a little sustain. If just depends on what you are playing. This pedal offers a feel close to that of the pedal on an acoustic piano. The FC3A is a Sustain pedal capable of sending all values between 0 and 127 when it is engaged. It sends 127 when engaged and 0 when disengaged. ON or OFF. This pedal offers a feel close to that of the pedal on an acoustic piano. Customers who bought this item also bought. I am very happy with the FC3A. This shopping feature will continue to load items when the Enter key is pressed. This pedal is compatible with half-pedaling functions, allowing detailed, expressive performance. Page 1 of 1 Start over Page 1 of 1 . Yamaha FC3A Piano Style Sustain Foot Pedal with Half-Pedaling,Black 4.5 out of 5 stars 139. $39.99. A foot pedal for use with digital pianos, keyboards, synthesizers, and stage pianos. Next. It will either be a lot of sustain or nothing. The FC4A is basically an on and off switch. A foot pedal for use with digital pianos, keyboards, synthesizers, and stage pianos. A foot pedal for use with digital pianos, keyboards, synthesizers, and stage pianos. Although I am sure that the FC4A will give great sustain but the FC3A allows for half peddling. The FC4A is your standard Sustain pedal. It is a simple switch. Combined with the Montage tone generator's ability to interpret these values, it can be used to control the Half Dampering function.