GraceHandler

abstract class abjadext.nauert.GraceHandler.GraceHandler

Abstract grace-handler.

Determines what pitch, if any, will be selected from a list of QEvents to be applied to an attack-point generated by a QGrid, and whether there should be a GraceContainer attached to th at attack-point.

When called on a sequence of QEvents, GraceHandler subclasses should return a pair, where the first item of the pair is a sequence of pitch tokens or None, and where the second item of the pair is a GraceContainer instance or None.

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Attributes Summary

__call__

Calls grace handler.

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Special methods

abstract __call__(q_events)

Calls grace handler.

(AbjadObject).__format__(format_specification='')

Formats Abjad object.

Set format_specification to '' or 'storage'. Interprets '' equal to 'storage'.

Returns string.

(AbjadObject).__repr__()

Gets interpreter representation of Abjad object.

Returns string.