Which is a keyboard instrument listed among common keyboards?

Which is a keyboard instrument listed among common keyboards?

• A. Violin
• B. Piano
• C. Guitar
• D. Flute

Answer: (B)

Keyboard instruments are defined by playing through a keyboard interface that controls how sound is produced. The piano is the classic example: pressing a key activates a mechanism that makes strings inside the instrument vibrate to produce a note, with the layout of white and black keys guiding the pitch range. Among the listed options, only the piano uses this keyboard interface as its primary means of producing sound; the violin is bowed, the guitar is plucked, and the flute is blown air. So the piano is the correct choice.

Keyboard instruments are defined by playing through a keyboard interface that controls how sound is produced. The piano is the classic example: pressing a key activates a mechanism that makes strings inside the instrument vibrate to produce a note, with the layout of white and black keys guiding the pitch range. Among the listed options, only the piano uses this keyboard interface as its primary means of producing sound; the violin is bowed, the guitar is plucked, and the flute is blown air. So the piano is the correct choice.