def isValid(text):
    """
        Returns True if the input is related to music.

        Arguments:
        text -- user-input, typically transcribed speech
    """
    return any(word in text for word in [u"听歌", u"音乐", u"播放",
                                         u"我想听", u"唱歌", u"唱首歌",
                                         u"歌单", u"榜单"])