replaceSequence(name, array) {
    for (var i in this.phrases) {
      if (this.phrases[i].name === name) {
        this.phrases[i].sequence = array;
      }
    }
  }
Find all sequences with the specified name, and replace their patterns with the specified array.

 @method  replaceSequence
 @for p5.Part
 @param  {String} phraseName
 @param  {Array} sequence  Array of values to pass into the callback
                           at each step of the phrase.