12 BREAK_PRE,BREAK_MIDDLE, BREAK_POST, BREAK_END
15 /// set a nonrythmical symbol
20 /// analogous to argv[]
25 /** in what order relative to other TYPESET commands (eg, bar
26 should precede meter). Highest priority first. */
37 A nonrhythmical "thing" in a staff is called a "command".
38 Commands have these properties:
41 \item They are \bf{not} rhythmical, i.e. they do not have a duration
42 \item They have a staff-wide impact, i.e. a command cannot be targeted at
43 only one voice in the staff: two voices sharing a staff can't have
45 \item Commands are ordered, that is, when from musical point of view the
46 commands happen simultaneously, the order in which Staff receives the
47 commands can still make a difference in the output
48 \item Some commands are actually score wide, so Score has to issue these
49 commands to the Staff, eg. BREAK commands
52 At this moment we have three classes of commands:
54 INTERPRET commands are not grouped.
55 \item[TYPESET] These commands instruct the Staff to
56 typeset symbols on the output, eg meter/clef/key changes
57 \item[INTERPRET] These commands do not produce output, instead,
58 they change the interpretation of other commands or requests.
59 example: shift output vertically, set the key.
60 \item[BREAK_XXX] These commands group TYPESET commands in
61 prebreak and postbreak commands. See Documentation/breaking
63 Staff can insert additional commands in a sequence of BREAK_XXX
64 commands, eg. key change commands
68 These commands are generated by Score, since they have to be the
69 same for the whole score.
77 \item[TYPESET] METER,BAR
81 Commands can be freely copied, they do not have virtual methods.