def getSearchUrl(self, album, artist):
    """ See CoverSource.getSearchUrl. """
    url = "%s/search" % (__class__.BASE_URL)
    params = collections.OrderedDict()
    params["search-alias"] = "digital-music"
    params["field-keywords"] = " ".join((artist, album))
    params["sort"] = "relevancerank"
    return __class__.assembleUrl(url, params)