4 lsrtags = "contemporary-notation, pitches, really-cool, staff-notation, version-specific"
7 The commonly used @code{\\key} command sets the @code{keyAlterations}
8 property, in the @code{Staff} context.
10 To create non-standard key signatures, set this property directly. The
11 format of this command is a list:
13 @code{ \\set Staff.keyAlterations = #`(((octave . step) . alter) ((octave
14 . step) . alter) ...) } where, for each element in the list,
15 @code{octave} specifies the octave (0 being the octave from middle C to
16 the B above), @code{step} specifies the note within the octave (0 means
17 C and 6 means B), and @code{alter} is @code{,SHARP ,FLAT ,DOUBLE-SHARP}
18 etc. (Note the leading comma.)
21 Alternatively, for each item in the list, using the more concise format
22 @code{(step . alter)} specifies that the same alteration should hold in
26 For microtonal scales where a @qq{sharp} is not 100 cents, @code{alter}
27 refers to the alteration as a proportion of a 200-cent whole tone.
30 Here is an example of a possible key signature for generating a
34 doctitle = "Non-traditional key signatures"
39 \set Staff.keyAlterations = #`((6 . ,FLAT)