How well do you know the basics of piano? pianolove333 published on October 31, 2009 Stacked 1/4 How many keys does a piano have? 57 88 71 102 2/4 Which pedal is the damper pedal? The left pedal The middle pedal The right pedal 3/4 How many strings are there for every note? 1 3 5 4/4 A piano is made of... Wood Cotton Plastic Metal