Function resume

src/components/Player/index.js:110–117

(wrap = false)

  }

  resume(wrap = false) {
    this.pause();
    if (this.next() || (wrap && this.props.setCursor(1))) {
      const interval = 4000 / Math.pow(Math.E, this.state.speed);
      this.timer = window.setTimeout(() => this.resume(), interval);
      this.setState({ playing: true });
    }
  }

  pause() {
    if (this.timer) {