text: exports.UPDATE_SEQUENCE = 'UPDATE_SEQUENCE'
  exports.UPDATE_SYNTH = 'UPDATE_SYNTH'
  exports.CHANGE_MODE = 'CHANGE_MODE'
  exports.ADD_LAYER = 'ADD_LAYER'
  exports.ACTIVATE_LAYER = 'ACTIVATE_LAYER'
  exports.MUTE_LAYER = 'MUTE_LAYER'
  exports.TOGGLE_LAYERS = 'TOGGLE_LAYERS'
  exports.SEQ_ACTIVE_UPDATE = 'SEQ_ACTIVE_UPDATE'
  exports.SEQ_GAIN_UPDATE = 'SEQ_GAIN_UPDATE'
  exports.SEQ_LENGTH_UPDATE = 'SEQ_LENGTH_UPDATE'
  exports.SEQ_PITCH_UPDATE = 'SEQ_PITCH_UPDATE'
  
  