@classmethod
def get_lilypond_minimum_version_string(class_):
    """
        Gets LilyPond minimum version string.

        ..  container:: example

            >>> abjad_configuration = abjad.AbjadConfiguration()
            >>> abjad_configuration.get_lilypond_minimum_version_string() # doctest: +SKIP
            '2.19.0'

        Returns string.
        """
    version = class_.get_lilypond_version_string()
    parts = version.split('.')[0:2]
    parts.append('0')
    return '.'.join(parts)
