Pink Floyd Cover:
Shine on You Crazy Diamond [unfortunately very low audio quality].

Slider And Knob with Arduino and PureData:
This is a very simple exercise that demonstrates the power of the Arduino board interfaced with PureData. A trimmer and a fader are connected to arduino’s analog inputs, an “external” object of PureData receives the values and controls the Frequency and the Q-factor of a bandpass filter [vcf~] applied to a white noise.