Methods for music structure analysis of a piece of music includes determining predetermined features for a plurality of sections of the piece of music. The sections are longer than a shortest time span corresponding to a meaningful part of the piece of music. At least two sections are compared based on the predetermined features, and a chorus of the piece of music is determined based on a comparison result of the comparing. First and second groups of the sections are determined, such that a similarity among sections of the first and second groups lie within respective first and second ranges. The first range has a higher level than the second range.