att.expandable/@expandIndicates whether to render a repeat symbol or the source material to which it refers.
A value of 'true' renders the source material, while 'false' displays the repeat
symbol.
att.hairpin.log/@nienteIndicates that the hairpin starts from or ends in silence. Often rendered as a small
circle attached to the closed end of the hairpin. See Gould, p. 108.
att.extender/@extenderIndicates the presence of an extension symbol, typically a line.
att.meterConformance.bar/@metconIndicates the relationship between the content of a measure and the prevailing
meter.
att.arpeg.vis/@arrowIndicates if an arrowhead is to be drawn as part of the arpeggiation symbol.
att.hairpin.vis/@closedApplies to a "Rossini" hairpin, i.e., one where the normally open side is closed by
a connecting line.
att.hairpin.vis/@opening.verticalIndicates that the opening points are aligned with an imaginary line that is always
90° perpendicular to the horizontal plane, regardless of any angle or start/end adjustments,
including when the hairpin is angled with @angle.optimize or through @endvo/@startvo
adjustments.
att.hairpin.vis/@angle.optimizeIndicates that the slope of the hairpin can be adjusted to follow the content in order
to optimize spacing.
att.multiRest.vis/@blockThe block attribute controls whether the multimeasure rest should be rendered as a
block rest
or as church rests ("Kirchenpausen"), that are combinations of longa, breve and semibreve
rests.
att.section.vis/@restartIndicates that staves begin again with this section.
att.space.vis/@compressableIndicates whether a space is 'compressible', i.e., if it may be removed at the
discretion of processing software.
att.staffDef.vis/@lines.visibleRecords whether all staff lines are visible.
att.staffGrp.vis/@bar.thruIndicates whether bar lines go across the space between staves (true) or are only
drawn across the lines of each staff (false).
att.tuplet.vis/@bracket.visibleStates whether a bracket should be rendered with a tuplet.