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MIDI Projects

Trumpet
What do you get when you combine a straw, balloon, five push buttons, and a Picaxe microcontroller? A Trumpet (or piano, or drums, any other instrument you want)
 
By blowing into a straw you slightly inflate a ballon. The balloon goes trhough a hole in a block of wood. When the balloon inflates it breaks a light beam which tells the picaxe to produce a note. The note produced depends on what combination of push buttons you have pressed.
MIDI Theremin
Theremin is a musical instrument invented by a Russian in 1928. It is played without physical contact. Instead you move your hands around two antennas, one for volume and one for the note. It's associated with an eerie sound and is featured in soundtracks such as Spellbound, The Lost Weekend, and The Day the Earth Stood Still.
 
The Theremin here produces MIDI output signals and can simulate almost any musical instrument - except the original Theremin.
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