The jitter task that I built for task seven was a minimalist game like environment where (using the qwerty keyboard) one has to bang in time to continue with a musical progression.

The first three levels change the timings of the Red, Green then Blue planes of the entire matrix. A counter object fades the plane’s values from 0 – 255, and utilising a gate object one must bang when the values are between 0 – 10 to progress to the next level. This banging in time gets progressively harder as the levels progress (refer to metro for specific timings).

The introductory text is triggered by a jit.gl.text2d object, so when ‘1′ is pressed on the qwerty keyboard at the start of the jitter interaction, the text ‘minimal’ pans across the matrix window.

The fourth level will only let the player continue once the third row down of set cell messages is filled on the 20 x 10 matrix (if you miss this bang you must clear the matrix to try again). This is controlled by a select 19 object that goes into a gate object which, once banged in time, toggles to an identical sequence on the 7th row (the only difference is the accompanying melody).

Once banged in time on the 7th row, not only is the third row sequence initiated again (using a multiply object in conjunction with a gate), but this change triggers a switch that enables an uzi object to clear the cell positions once they fill up to nineteen. In addition, a chord sequence correlating to a descending yellow cell message is rewarded for your persistence. These cell coordinates are connected to a line object so they fade in and out.

After you have passed all the levels, it is possible to reinitiate earlier events to create an alternative structure.

I feel the simple diatonic melodies and harmonies compliment the basic matrix transformations aptly, and that the soft synth sounds are varied enough to satisfy the listener yet are not so complex that the audio-visual relationship is diminished through a lack of association.