This instructable shows how I made my prototype and describes how you could make your own. It won't go into super-deep detail, so if you want any assistance, please don't hesitate to contact me!
More details can be found in the report I wrote here.
This document and all included research and illustrations, are covered by a Creative Commons Attribution-ShareAlike 3.0 Unported License. The hardware designs, schematics and code are provided under GPL v3. This means that you can rebuild and improve on this project as you wish, just let me an Meeblip know!
If you want to know more about me, check me out at http://www.arvidjense.com
Step 1: Concept and design
Another point where I feel synthesizers are performing worse than traditional instruments, is in their connection to the user. Where I can feel the vibrations of my guitar resonating through my hands and body, the sound of a synthesizer comes from a speaker a few meters away from me. Similar on the control interface; A guitar is quite clear in the fact that if you pluck a string,a sound comes out. But for a synthesizer you will have to learn the function of dozens of knobs which often have several layers of functionality.
On the other hand the palette of different sounds coming from a synthesizer is bigger than that of most traditional instruments. Also the possibilities for programming the notes allow for things not possible on traditional instruments. So why choose one or the other? I wanted to create a synthesizer which has the flexibility and direct connection of a traditional instrument.
As I've done this project for Meeblip, one thing was certain, I would use a Meeblip Micro as the sonic centerpiece. Other than that, everything was still open. Would it become a drumbox or rather a guitar-like synth? After looking at a lot of different synthesizers, reading up on synthesizer design literature and sketching lot of variations, I came up with something.
After making a lot of prototypes of all the individual pieces (interface, electronics, sequencer etc) I finally found the 'final form' which is made in the next steps. All functions are directly accessible through the knobs and switches on the interface The internal speaker allows the instrument itself to vibrate, which, especially when you place the instrument in your lap, help you feel what your playing. The instrument is controlled through a circular sequencers, in which you set the notes form a range of -12 to +12 semitones from a center note set by the base knob.
I've yet to create a decent video showing all the function, but as soon as that is present, I'll put it in here!