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## Did you know?

### Music math harmony

Music is a form of non-verbal communication that was not created by mankind but discovered and reorganized by mankind. It is not purely a natural phenomena but it is result of the principles of Physics and Mathematics.

Mathematics is the 'basic of sound', so sometimes musicians need to refer mathematics to encompass the music. Ancient Greece Pythagorean was the first to investigate and express the musical scales in terms of numerical ratios.

In Pythagorean theorem , the ratios between the 7 notes of the major scales are 1/1, 9/8, 5/4, 4/3, 3/2, 5/3, 15/8, 2/1

The sound waves produced from the musical instruments causes air to vibrate at a particular frequency. The pitch of the music is determined by the rate of vibration.

For example, If music note with X is produced, then it might have overtones at multiples of X as X, 2X, 3X, 4X, 5X, 6X etc The major chord is formed by playing the 1st, 3rd and 5th notes of the major scale at a same time. Here we can easily understand the mathematical relationship between the overtones of the 1st, 3rd and 5th notes.

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Daily Maths Topic Today - music math harmony.