text: app.init.loopTracks = function(app){
      for ( var i=0; i<app.numLoopTracks; i++ ) {
  
          var loopTrack = new Wad.Poly({
              // reverb : {
              //     wet : .8,
              //     impulse : 'http://localhost:8000/widehall.wav'
              // },
              delay : {
                  delayTime: app.b(16),
                  maxDelayTime: 20,
                  feedback : 1,
                  wet      : 1
              },
              // recConfig : { 
              //     workerPath : '/src/Recorderjs/recorderWorker.js'
              // },
              // filter : {
              //     type : 'lowpass',
              //     frequency : 1300
              // }
          })
          loopTrack.state = {
              muted     : false, 
              recording : false,
              scheduled : { // state is scheduled to change to at the start of each loop
                  muted     : false,
                  recording : false,
              }
          }
          app.preDest.add(loopTrack)
          app.loopTracks.push(loopTrack)
      }
  }