void SuperpoweredExample::onTempoSelected(int tempoMode) {
    switch (tempoMode) {
        case SLOW_DOWN:
            player->setTempo(TEMPO_HALF, true);
            break;
        case PLAY_NORMAL:
            player->setTempo(TEMPO_ORIGINAL, true);
            break;
        case SPEED_UP:
            player->setTempo(TEMPO_DOUBLE, true);
            break;
        default:
            player->setTempo(TEMPO_ORIGINAL, true);
            break;
    }
}