《鋼琴》究竟鋼琴的腳踏有什麼用途？

The right hand side is use for hold the sound for a long time without using your fingers to touch the keyboard for a long time. Use your right feet to step it. This (腳踏) pedal is the most useness of the three pedals. The middle one is use for change the sound. The sound will be very quiet and not as same as paino. We won't use it usually. The left one is to make the sound become harmoniously(悅耳). Also we don't use it usually. So the most useful one is the right one. You just need to use one feet to step the pedal. The middle one can lock. If you see carefully, you will see there is a place for locking the middle pedal.

我的blog有提到pedal的問題
http://hk.myblog.yahoo.com/piano-missho

see http://en.wikipedia.org/wiki/Piano#Pedals