Do I really need all 3 pedals to play a piano peice properly?

Question:I have an electronic keyboard, and I'm getting a sustain pedal soon, which is apparently supposed to simulate the right pedal on a piano.

However, piano's have 2 other pedals.

I was just wondering... are the other two really necessary?

For example... Could I play the following piece with only the sustain pedal available, while sounding the same?

http://youtube.com/watch?v=tvm2ZsRv3C8

Best Answer - Chosen by Asker: I have an electronic keyboard, and I'm getting a sustain pedal soon, which is apparently supposed to simulate the right pedal on a piano.

However, piano's have 2 other pedals.

I was just wondering... are the other two really necessary?

For example... Could I play the following piece with only the sustain pedal available, while sounding the same?

http://youtube.com/watch?v=tvm2ZsRv3C8

The other two pedals are: a "soft" pedal, which reduces the distance of the hammer-strike to make your volume softer, and a half-sustain pedal, which sustains bass notes but not upper notes so that you can hit a bass note and then hold it while playing treble with both hands.

The "soft" pedal is easy, just buy a volume pedal for your output line. But I don't know of any way to mimic the half-sustain on your electronic keyboard.

Fortunately, almost all of the piano literature can be played without either of those pedals.

No the other two are not really necessary. You'll do just fine with the sustain pedal.

Put it this way, if you make good use of these pedals, actually, the musical piece could probably have more feeling. No ?