Beam

Beam objects are created by: Auto_beam_engraver, Beam_engraver, Chord_tremolo_engraver and Grace_beam_engraver

Standard settings:

print-function (procedure):

Beam::print

Function taking grob as argument, returning a Stencil object.

gap (dimension, in staff space):

0.8

Size of a gap in a variable symbol.

positions (pair):

'(#f . #f)

Pair of staff coordinates (left . right), where both left and right are in the staff-space unit of the current staff.

thickness (number):

0.48

Bar line thickness, measured in linethickness.

before-line-breaking-callback (procedure):

Beam::before_line_breaking

This procedure is called before line breaking, but after splitting breakable items at potential line breaks.

neutral-direction (direction):

-1

Which direction to take in the center of the staff.

dir-function (procedure):

beam-dir-majority-median

The function to determine the direction of a beam. Choices include:

beam-dir-majority

number count of up or down notes

beam-dir-mean

mean center distance of all notes

beam-dir-median.

mean center distance weighted per note

beamed-stem-shorten (list):

'(1.0 0.5 0.25)

How much to shorten beamed stems, when their direction is forced. It is a list, since the value is different depending on the number flags/beams.

flag-width-function (procedure):

beam-flag-width-function

Procedure that computes the width of a half-beam (a non-connecting beam.).

damping (number):

1

Amount of beam slope damping. 0: no, 1: yes, 100000: horizontal beams.

auto-knee-gap (dimension, in staff space):

5.5

If a gap is found between note heads where a horizontal beam fits that is larger than this number, make a kneed beam.

font-family (symbol):

'roman

The font family is the broadest category for selecting text fonts. Options include: sans, roman

space-function (procedure):

Beam::space_function

Calculate the vertical space between two beams. This function takes a beam grob and the maximum number of beams.

This object supports the following interfaces: spanner-interface, beam-interface, staff-symbol-referencer-interface and grob-interface

Other languages: English.
Using automatic language selection.