3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 2009 Marc Hohl <marc@hohlart.de>
7 ;; default tunings for common string instruments
9 (define-public guitar-tuning '(4 -1 -5 -10 -15 -20))
10 (define-public guitar-seven-string-tuning '(4 -1 -5 -10 -15 -20 -25))
11 (define-public guitar-drop-d-tuning '(4 -1 -5 -10 -15 -22))
12 (define-public guitar-open-g-tuning '(2 -1 -5 -10 -17 -22))
13 (define-public guitar-open-d-tuning '(2 -3 -6 -10 -15 -22))
14 (define-public guitar-dadgad-tuning '(2 -3 -7 -10 -15 -22))
15 (define-public guitar-lute-tuning '(4 -1 -6 -10 -15 -20))
16 (define-public guitar-asus4-tuning '(4 -3 -8 -10 -15 -20))
18 (define-public bass-tuning '(-17 -22 -27 -32))
19 (define-public bass-four-string-tuning '(-17 -22 -27 -32))
20 (define-public bass-drop-d-tuning '(-17 -22 -27 -34))
21 (define-public bass-five-string-tuning '(-17 -22 -27 -32 -37))
22 (define-public bass-six-string-tuning '(-12 -17 -22 -27 -32 -37))
24 (define-public mandolin-tuning '(16 9 2 -5))
25 ;; tunings for 5-string banjo
26 (define-public banjo-open-g-tuning '(2 -1 -5 -10 7))
27 (define-public banjo-c-tuning '(2 -1 -5 -12 7))
28 (define-public banjo-modal-tuning '(2 0 -5 -10 7))
29 (define-public banjo-open-d-tuning '(2 -3 -6 -10 9))
30 (define-public banjo-open-dm-tuning '(2 -3 -6 -10 9))
31 ;; convert 5-string banjo tuning to 4-string by removing the 5th string
32 (define-public (four-string-banjo tuning)
33 (reverse (cdr (reverse tuning))))
35 ;; for more control over glyph-name calculations,
36 ;; we use a custom callback for tab noteheads
37 ;; which will ignore 'style = 'do
38 (define-public (tab-note-head::calc-glyph-name grob)
39 (let ((style (ly:grob-property grob 'style)))
44 ;; ensure we only call notehead callback when
46 (define-public (tab-note-head::whiteout-if-style-set grob)
47 (let ((style (ly:grob-property grob 'style)))
49 (if (and (symbol? style)
51 (stencil-whiteout (ly:note-head::print grob))
52 (ly:text-interface::print grob))))
54 ;; definitions for the "moderntab" clef:
55 ;; the "moderntab" clef will be added to the list of known clefs,
56 ;; so it can be used as any other clef: \clef "moderntab"
57 (add-new-clef "moderntab" "markup.moderntab" 0 0 0)
59 ;; define sans serif-style tab-Clefs as a markup:
60 (define-builtin-markup-command (customTabClef
61 layout props num-strings staff-space)
65 "Draw a tab clef sans-serif style."
66 (define (square x) (* x x))
67 (let* ((scale-factor (/ staff-space 1.5))
68 (font-size (- (* num-strings 1.5 scale-factor) 7))
69 (base-skip (* (square (+ (* num-strings 0.195) 0.4)) scale-factor)))
71 (interpret-markup layout props
72 (markup #:vcenter #:bold
73 #:override (cons 'font-family 'sans)
75 #:override (cons 'baseline-skip base-skip)
76 #:left-align #:center-column ("T" "A" "B")))))
78 ;; this function decides which clef to take
79 (define-public (clef::print-modern-tab-if-set grob)
80 (let ((glyph (ly:grob-property grob 'glyph)))
82 ;; which clef is wanted?
83 (if (string=? glyph "markup.moderntab")
84 ;; if it is "moderntab", we'll draw it
85 (let* ((staff-symbol (ly:grob-object grob 'staff-symbol))
86 (line-count (ly:grob-property staff-symbol 'line-count))
87 (staff-space (ly:staff-symbol-staff-space grob)))
89 (grob-interpret-markup grob (make-customTabClef-markup line-count
91 ;; otherwise, we simply use the default printing routine
92 (ly:clef::print grob))))
94 ;; if stems are drawn, it is nice to have a double stem for
95 ;; (dotted) half notes to distinguish them from quarter notes:
96 (define-public (tabvoice::draw-double-stem-for-half-notes grob)
97 (let ((stem (ly:stem::print grob)))
99 ;; is the note a (dotted) half note?
100 (if (= 1 (ly:grob-property grob 'duration-log))
101 ;; yes -> draw double stem
102 (ly:stencil-combine-at-edge stem X RIGHT stem 0.5)
103 ;; no -> draw simple stem
106 ;; as default, the glissando line between fret numbers goes
107 ;; upwards, here we have a function to correct this behavior:
108 (define-public (glissando::calc-tab-extra-dy grob)
109 (let* ((original (ly:grob-original grob))
110 (left-bound (ly:spanner-bound original LEFT))
111 (right-bound (ly:spanner-bound original RIGHT))
112 (left-pitch (ly:event-property (event-cause left-bound) 'pitch))
113 (right-pitch (ly:event-property (event-cause right-bound) 'pitch)))
115 (if (< (ly:pitch-semitones right-pitch) (ly:pitch-semitones left-pitch))
119 ;; for ties in tablature, fret numbers that are tied to should be invisible,
120 ;; except for 'tied to' numbers after a line break;; these will be
121 ;; parenthesized (thanks to Neil for his solution):
122 (define-public (parenthesize-tab-note-head grob)
123 ;; Helper function to parenthesize tab noteheads,
124 ;; since we can't use ParenthesesItem at this stage
125 ;; This is basically the same as the C++ function
126 ;; in accidental.cc, converted to Scheme
127 (let* ((font (ly:grob-default-font grob))
128 (open (stencil-whiteout
129 (ly:font-get-glyph font "accidentals.leftparen")))
130 (close (stencil-whiteout
131 (ly:font-get-glyph font "accidentals.rightparen")))
132 (me (ly:text-interface::print grob)))
134 (ly:stencil-combine-at-edge
135 (ly:stencil-combine-at-edge me X LEFT open) X RIGHT close)))
137 ;; ParenthesesItem doesn't work very well for TabNoteHead, since
138 ;; the parentheses are too small and clash with the staff-lines
139 ;; Define a callback for the 'stencils property which will tweak
140 ;; the parentheses' appearance for TabNoteHead
141 (define-public (parentheses-item::calc-tabstaff-parenthesis-stencils grob)
142 ;; the grob we want to parenthesize
143 (let ((victim (ly:grob-array-ref (ly:grob-object grob 'elements) 0)))
145 ;; check whether it's a note head
146 (if (grob::has-interface victim 'note-head-interface)
148 ;; tweak appearance before retrieving
149 ;; list of stencils '(left-paren right-paren)
150 ;; get the font-size from victim (=TabNoteHead) to handle
151 ;; grace notes properly
152 (ly:grob-set-property! grob 'font-size
153 (ly:grob-property victim 'font-size))
154 (ly:grob-set-property! grob 'padding 0)
155 ;; apply whiteout to each element of the list
156 (map stencil-whiteout
157 (parentheses-item::calc-parenthesis-stencils grob)))
158 (parentheses-item::calc-parenthesis-stencils grob))))
160 ;; the handler for ties in tablature; according to TabNoteHead #'details,
161 ;; the 'tied to' note is handled differently after a line break
162 (define-public (tie::handle-tab-note-head grob)
163 (let* ((original (ly:grob-original grob))
164 (tied-tab-note-head (ly:spanner-bound grob RIGHT))
165 (siblings (if (ly:grob? original)
166 (ly:spanner-broken-into original) '())))
168 (if (and (>= (length siblings) 2)
169 (eq? (car (last-pair siblings)) grob))
170 ;; tie is split -> get TabNoteHead #'details
171 (let* ((details (ly:grob-property tied-tab-note-head 'details))
172 (tied-properties (assoc-get 'tied-properties details '()))
173 (tab-note-head-parenthesized (assoc-get 'parenthesize tied-properties #t))
174 ;; we need the begin-of-line entry in the 'break-visibility vector
175 (tab-note-head-visible
176 (vector-ref (assoc-get 'break-visibility
177 tied-properties #(#f #f #t)) 2)))
179 (if tab-note-head-visible
180 ;; tab note head is visible
181 (if tab-note-head-parenthesized
182 (ly:grob-set-property! tied-tab-note-head 'stencil
184 (parenthesize-tab-note-head grob))))
185 ;; tab note head is invisible
186 (ly:grob-set-property! tied-tab-note-head 'transparent #t)))
188 ;; tie is not split -> make fret number invisible
189 (ly:grob-set-property! tied-tab-note-head 'transparent #t))))
191 ;; repeat ties occur within alternatives in a repeat construct;
192 ;; TabNoteHead #'details handles the appearance in this case
193 (define-public (repeat-tie::handle-tab-note-head grob)
194 (let* ((tied-tab-note-head (ly:grob-object grob 'note-head))
195 (details (ly:grob-property tied-tab-note-head 'details))
196 (repeat-tied-properties (assoc-get 'repeat-tied-properties details '()))
197 (tab-note-head-visible (assoc-get 'note-head-visible repeat-tied-properties #t))
198 (tab-note-head-parenthesized (assoc-get 'parenthesize repeat-tied-properties #t)))
200 (if tab-note-head-visible
201 ;; tab note head is visible
202 ( if tab-note-head-parenthesized
203 (ly:grob-set-property! tied-tab-note-head 'stencil
205 (parenthesize-tab-note-head grob))))
206 ;; tab note head is invisible
207 (ly:grob-set-property! tied-tab-note-head 'transparent #t))))