altering-the-number-of-stems-in-a-beam.ly chant-or-psalms-notation.ly heavily-customized-polymetric-time-signatures.ly conducting-signs,-measure-grouping-signs.ly skips-in-lyric-mode-2.ly automatic-beam-subdivisions.ly rhythmic-slashes.ly adding-beams,-slurs,-ties-etc.-when-using-tuplet-and-non-tuplet-rythms..ly changing-time-signatures-inside-a-polymetric-section-using--compressmusic.ly automatic-beams-two-per-two-in-4-4-or-2-2-time-signature.ly making-an-object-invisible-with-the-transparent-property.ly manually-controlling-beam-positions.ly forcing-rehearsal-marks-to-start-from-a-given-letter-or-number.ly controlling-tuplet-bracket-visibility.ly beam-across-line-breaks.ly compound-time-signatures.ly adding-drum-parts.ly rest-styles.ly skips-in-lyric-mode.ly