Question

• Consider the small keyboard shown on the screen:

bgfl.org/custom/resources_ftp/client_ftp/ks2/music/piano/index.htm

• Write the set of all frequencies that can be played using this keyboard.
• Hints:

1. f= 440 Hz is the middle A (A4)

2. $ \frac{f_{i+1}}{f_{i}}= 2^{\frac{1}{12}} $ for every consecutive $ f_{i}, \, f_{i+1} $

Answers and discussion

• Official answer with grading key
• Write your comments/questions here.
• Write your comments/questions here.

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