<Audio 

  version="1.0" 

  timeUnit="ms" 

  gain="0dB"

  controls="false"

  transitionTime="10">

  <var name="p" value="$deviceOrientationAlpha" mapin="90,270" mapout="60,62,63.5,67,72,75.5,79,84" curve="steps" convert="MIDI->frequency"/>

  <var name="f" value="$deviceOrientationGamma" mapin="0,90" mapout="20,1000"/>

  <var name="g" value="$deviceOrientationBeta" mapin="0,60" mapout="1,0"/>

  <OscillatorNode type="sawtooth" frequency="$p" output="next"/>

  <BiquadFilterNode frequency="$f" output="next"/>

  <GainNode gain="$g"/>

​

</Audio>

​