23 Mar
2011
23 Mar
'11
12:24 p.m.
Hi,
Joe wrote:
hello i am trying to come up with some examples to use in a short workshop with 11 year old kids using maths to make sound and music
Very basic : Multiply/divide a frequency by 2, get an octave up/down. Add/substract at the hertz level to tune/detune a sound. Show how notes don't have an equal size in a scale (without talking about 12th root). It's also a good time to introduce equal temperament and the damage done :). Add two or more sines to create a beating. (see A08.beating.pd)
Also get a acoustic instrument with you to prove it's not about computer magic. With a guitar you can show the different fret spaces and detune the instrument to produce nice beatings.
good luck with the new generation :)
--
Charlot