Piano: a large keyboard musical instrument with a wooden case enclosing a soundboard and metal strings. The strings' vibration is stopped by dampers when the keys are released, and it can be regulated for length and volume by two or three pedals.
Violin: a stringed musical instrument of treble pitch, played with a horsehair bow. It has four strings and a body of characteristic rounded shape, narrowed at the middle and with two f-shaped sound holes
Piavio: A large string instrument with a wooden case enclosing a sound. The wooden case has 2 f-shaped holes carved into it. Every time you pluck or play the piavio, the sound will vibrate with high or low sound, depending where you bow or pluck. You can increase the vibration with the damper pedal.
