Q. Consider the following statements regarding the mechanics of playing a flute:

1. Opening and closing holes in the flute alters the pitch of the sound produced.
2. Resonant frequency of the flute changes as a result of modifying which holes are open or closed.
3. Timbre of the sound can be influenced by the combinations of holes being open or closed.

Which of the above statements is / are correct?
Answer: 1, 2 and 3
Notes: Opening and closing holes on a flute change the effective length, thereby affecting both pitch and resonant frequency. Timbre, or quality of sound, can also be influenced by the configuration of open or closed holes, distinguishing the nuances of adjacent notes. Therefore, all three statements about pitch, resonant frequency, and timbre are correct in this context.