Yes, that is exactly what the new version talked about on the blog does it uses custom musical phrases composed of a number of partial harmonics. These of course were created by the composer Francisco Castillo Trigueros. I am not a huge music buff.
Yes, I know photoresistors suck(bad choice by me) and the code written for the arduino goes through much effort to filter, baseline and produce halfway usable measurements from each photoresistor. Everytime the instrument is turned on it goes through a long calibration process that also takes into account the photocycling of the protein.
The LEDs I purchased off of eBay from China but similar ones can easily be found on Digikey or your favorite site just search for blue LEDs (http://www.digikey.com/product-search/en/optoelectronics/led-lighting-color/525607?k=blue%20led)
-- On Sat, Jun 8, 2013 at 12:25 PM, Jonathan Cline <jncline@gmail.com> wrote:
Very cool, I have some comments for you.
Could you post the source and part number for the LED you are using, since you've found a good source of 460 nm illumination, or at least, a source which allows for OK calibration.
If you are using photoresistors then you should know that they can drift and are not precise. So you would have to tune each one.
I wonder if you've listened to any of the fractal/chaos mathematics-driven music algorithms which were the nerdy-rage some time ago. Lots of interesting ideas though in the end the product typically sounded like junk. It would seem that a better approach is somehow keying arpeggios rather than individual notes.
## Jonathan Cline
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On Thursday, June 6, 2013 1:00:08 PM UTC-7, Josiah Zayner wrote:Hey all,--
I am a Ph.D. student(hopefully I will have my Ph.D. in the next few months, YIKES!) in Biochemistry and Molecular Biophysics at the University of Chicago. In my free time separate from my Ph.D. I have been working on the interaction of biologicals with electronics. My first attempt is a protein based musical instrument I have called The Chromochord. Using light one can create a two-way interaction with a photoactive protein by exciting it and measuring it's response. I have also been working with a composer, Francisco Castillo Trigueros, to develop some cool music for it. Thought you all might be interested in the project. Alot more details including videos and pictures are on the webpage below or feel free to ask me anything.
http://doitourselfscience.blogspot.com/2013/05/the-chromochord-details.html
Thanks,
Josiah Zayner
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