Circuit Bent Sa-21

Published on Jan 29, 2014 randalllundy·18 videos

"Long video of me fooling around with this Casio I bent...currently for sale on eBay"

via this auction

"A little about the SA-21, itself:

100 different sounds to choose from, ranging from traditional to wacky.

5 demo songs

5 drum sounds (hihat, bass, snare, agogo(?), crash)

19 different rhythm accompaniments

13 different super accompaniments


Mods:

"Glitch Randomizer" switch and knob: while playing a note/ drum sound flip this switch to initiate some crazy glitches! The glitch depends on the sound you are using and the placement of the knob. You can change up the glitch by twiddling with this knob. Works best when all the way up. Reset button: Use this button to reset the machine when it freezes up and won't make any sounds. This is common with circuit bending. It basically turns the machine off and on again. Power starve knob: This knob controls how much voltage the circuit is getting. For normal operation, you want this knob all the way up. You can use the starve knob to alter the sounds and get more glitches. There are 2 methods: The first involves turning the knob all the way down so that the circuit is getting no voltage. Then, slowly turn the knob up while playing notes on the keyboard. Stop when you start to hear noises... and then you can also continue to turn the knob up slowly to alter the glitches. The second method starts with the starve knob all the way up to full voltage. Play a demo song then slooowwwwly turn this knob down just a tiny, tiny, tiny bit, and the machine will freak out! Doesn't work every time and may crash the device but simply turn the knob back up, hit the reset button and try again! That's circuit bending for ya. Overall, I like the sounds on this keyboard... And there are a hundred to choose from! I also like the drum sounds! It's fun tapping out a beat on those big buttons! The glitches are awesome, it's like the machine has a mind of it's own... And it's a little psycho :)"