2 ;;; chord-name.scm -- Compile chord name
4 ;;; source file of the GNU LilyPond music typesetter
6 ;;; (c) 2000--2001 Jan Nieuwenhuizen <janneke@gnu.org>
18 ;; (octave notename accidental)
22 ;; text: scm markup text -- see font.scm and input/test/markup.ly
27 ;; * clean split of base/banter/american stuff
28 ;; * text definition is rather ad-hoc
29 ;; * do without format module
30 ;; * finish and check american names
31 ;; * make notename (tonic) configurable from lilypond
32 ;; * fix append/cons stuff in inner-name-banter
36 (define chord::names-alist-banter '())
37 (set! chord::names-alist-banter
43 (((0 . 0) (2 . 0)) . #f)
45 (((0 . 0) (2 . -1)) . ("m"))
47 (((0 . 0) (1 . 0) (4 . 0)) . ("" (super "2")))
49 (((0 . 0) (3 . 0) (4 . 0)) . ("" (super "4")))
51 (((0 . 0) (2 . -1) (4 . -1)) . ("dim"))
53 (((0 . 0) (2 . -1) (4 . -1) (6 . -2)) . ("" (super "o")))
55 (((0 . 0) (2 . -1) (4 . -1) (6 . -2) (1 . -1)) . ("dim" (super "9")))
56 (((0 . 0) (2 . -1) (4 . -1) (6 . -2) (1 . -1) (3 . -1)) . ("dim" (super "11")))
58 chord::names-alist-banter))
61 ;; NOTE: Duplicates of chord names defined elsewhere occur in this list
62 ;; in order to prevent spurious superscripting of various chord names,
63 ;; such as maj7, maj9, etc.
65 ;; See input/test/american-chords.ly
67 ;; James Hammons, <jlhamm@pacificnet.net>
70 ;; DONT use non-ascii characters, even if ``it works'' in Windows
72 (define chord::names-alist-american '())
74 (set! chord::names-alist-american
78 (((0 . 0) (2 . 0)) . #f)
80 (((0 . 0) (4 . 0)) . ("5"))
82 (((0 . 0) (2 . -1)) . ("m"))
83 (((0 . 0) (3 . 0) (4 . 0)) . ("sus"))
84 (((0 . 0) (2 . -1) (4 . -1)) . ("dim"))
85 ;Alternate: (((0 . 0) (2 . -1) (4 . -1)) . ("" (super "o")))
86 (((0 . 0) (2 . 0) (4 . 1)) . ("aug"))
87 ;Alternate: (((0 . 0) (2 . 0) (4 . 1)) . ("+"))
88 (((0 . 0) (1 . 0) (4 . 0)) . ("2"))
89 ;; Common seventh chords
90 (((0 . 0) (2 . -1) (4 . -1) (6 . -2)) . ("" (super "o") "7"))
91 (((0 . 0) (2 . 0) (4 . 0) (6 . 0)) . ("maj7"))
92 (((0 . 0) (2 . -1) (4 . 0) (6 . -1)) . ("m7"))
93 (((0 . 0) (2 . 0) (4 . 0) (6 . -1)) . ("7"))
94 (((0 . 0) (2 . -1) (4 . 0) (6 . 0)) . ("m(maj7)"))
95 ;jazz: the delta, see jazz-chords.ly
96 ;;(((0 . 0) (2 . -1) (4 . -1) (6 . -2)) . (super ((font-family . math) "N"))
97 ;; ugh, kludge slashed o
98 ;; (((0 . 0) (2 . -1) (4 . -1) (6 . -1)) . (rows ((raise . 1) "o") ((kern . -0.85) ((raise . 0.57) ((font-relative-size . -3) "/"))) "7")) ; slashed o
99 (((0 . 0) (2 . -1) (4 . -1) (6 . -1)) . (rows ((raise . 1) "o") (((kern . -0.85) (raise . 1.1) (font-relative-size . -2)) "/") "7")) ; slashed o
101 (((0 . 0) (2 . 0) (4 . 1) (6 . -1)) . ("aug7"))
102 (((0 . 0) (2 . 0) (4 . -1) (6 . 0)) . (rows "maj7" ((font-relative-size . -2) ((raise . 0.2) (music (named "accidentals--1")))) "5"))
103 (((0 . 0) (2 . 0) (4 . -1) (6 . -1)) . (rows "7" ((font-relative-size . -2) ((raise . 0.2) (music (named "accidentals--1")))) "5"))
104 (((0 . 0) (3 . 0) (4 . 0) (6 . -1)) . ("7sus4"))
105 ;; Common ninth chords
106 (((0 . 0) (2 . 0) (4 . 0) (5 . 0) (1 . 0)) . ("6/9")) ;; we don't want the '/no7'
107 (((0 . 0) (2 . 0) (4 . 0) (5 . 0)) . ("6"))
108 (((0 . 0) (2 . -1) (4 . 0) (5 . 0)) . ("m6"))
109 (((0 . 0) (2 . 0) (4 . 0) (1 . 0)) . ("add9"))
110 (((0 . 0) (2 . 0) (4 . 0) (6 . 0) (1 . 0)) . ("maj9"))
111 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (1 . 0)) . ("9"))
112 (((0 . 0) (2 . -1) (4 . 0) (6 . -1) (1 . 0)) . ("m9"))
115 chord::names-alist-american))
117 ;; Jazz chords, by Atte Andr'e Jensen <atte@post.com>
118 ;; NBs: This uses the american list as a base.
119 ;; Some defs take up more than one line,
120 ;; be carefull when messing with ;'s!!
125 ;; This is getting out-of hand? Only exceptional chord names that
126 ;; cannot be generated should be here.
127 ;; Maybe we should have inner-jazz-name and inner-american-name functions;
131 ;; DONT use non-ascii characters, even if ``it works'' in Windows
133 (define chord::names-alist-jazz '())
134 (set! chord::names-alist-jazz
138 ; major sixth chord = 6
139 (((0 . 0) (2 . 0) (4 . 0) (5 . 0)) . (((raise . 0.5) "6")))
140 ; major seventh chord = triangle
141 ;; shouldn't this be a filled black triange, like this: ? --jcn
142 ;; (((0 . 0) (2 . 0) (4 . 0) (6 . 0)) . (((raise . 0.5)((font-family . math) "N"))))
143 (((0 . 0) (2 . 0) (4 . 0) (6 . 0)) . (((raise . 0.5)((font-family . math) "M"))))
144 ; major chord add nine = add9
145 (((0 . 0) (2 . 0) (4 . 0) (1 . 0)) . (((raise . 0.5) "add9")))
146 ; major sixth chord with nine = 6/9
147 (((0 . 0) (2 . 0) (4 . 0) (5 . 0) (1 . 0)) . (((raise . 0.5) "6/9")))
150 ; minor sixth chord = m6
151 (((0 . 0) (2 . -1) (4 . 0) (5 . 0)) . (rows("m")((raise . 0.5) "6")))
152 ;; minor major seventh chord = m triangle
153 ;; shouldn't this be a filled black triange, like this: ? --jcn
154 ;;(((0 . 0) (2 . -1) (4 . 0) (6 . 0)) . (rows ("m") ((raise . 0.5)((font-family . math) "N"))))
155 (((0 . 0) (2 . -1) (4 . 0) (6 . 0)) . (rows ("m") ((raise . 0.5)((font-family . math) "M"))))
156 ; minor seventh chord = m7
157 (((0 . 0) (2 . -1) (4 . 0) (6 . -1)) . (rows("m")((raise . 0.5) "7")))
158 ; minor sixth nine chord = m6/9
159 (((0 . 0) (2 . -1) (4 . 0) (5 . 0) (1 . 0)) . (rows("m")((raise . 0.5) "6/9")))
160 ; minor with added nine chord = madd9
161 (((0 . 0) (2 . -1) (4 . 0) (1 . 0)) . (rows("m")((raise . 0.5) "add9")))
162 ; minor ninth chord = m9
163 (((0 . 0) (2 . -1) (4 . 0) (6 . -1) (1 . 0)) . (rows("m")((raise . 0.5) "9")))
166 ; dominant seventh = 7
167 (((0 . 0) (2 . 0) (4 . 0) (6 . -1)) . (((raise . 0.5) "7")))
168 ; augmented dominant = +7
169 ;(((0 . 0) (2 . 0) (4 . +1) (6 . -1)) . (((raise . 0.5) "+7"))) ; +7 with both raised
170 (((0 . 0) (2 . 0) (4 . +1) (6 . -1)) . (rows("+")((raise . 0.5) "7"))) ; +7 with 7 raised
171 ;(((0 . 0) (2 . 0) (4 . +1) (6 . -1)) . (rows((raise . 0.5) "7(")
172 ; ((raise . 0.3)(music (named ("accidentals-1"))))
173 ; ((raise . 0.5) "5)"))); 7(#5)
174 ; dominant flat 5 = 7(b5)
175 (((0 . 0) (2 . 0) (4 . -1) (6 . -1)) . (rows((raise . 0.5) "7(")
176 ((raise . 0.3)(music (named ("accidentals--1"))))
177 ((raise . 0.5) "5)")))
179 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (1 . 0)) . (((raise . 0.8)"7(9)")))
180 ; dominant flat 9 = 7(b9)
181 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (1 . -1)) . (
183 ((raise . 0.3)(music (named ("accidentals--1"))))
184 ((raise . 0.8)"9)")))
185 ; dominant sharp 9 = 7(#9)
186 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (1 . +1)) . (
188 ((raise . 0.3)(music (named ("accidentals-1"))))
189 ((raise . 0.8)"9)")))
190 ; dominant 13 = 7(13)
191 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (5 . 0)) . (((raise . 0.8)"7(13)")))
192 ; dominant flat 13 = 7(b13)
193 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (5 . -1)) . (
195 ((raise . 0.3)(music (named ("accidentals--1"))))
196 ((raise . 0.8)"13)")))
197 ; dominant 9, 13 = 7(9,13)
198 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (1 . 0) (5 . 0)) . (((raise . 0.8)"7(9, 13)")))
199 ; dominant flat 9, 13 = 7(b9,13)
200 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (1 . -1) (5 . 0)) . (
202 ((raise . 0.3)(music (named ("accidentals--1"))))
203 ((raise . 0.8)"9, 13)")))
204 ; dominant sharp 9, 13 = 7(#9,13)
205 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (1 . +1) (5 . 0)) . (
207 ((raise . 0.3)(music (named ("accidentals-1"))))
208 ((raise . 0.8)"9, 13)")))
209 ; dominant 9, flat 13 = 7(9,b13)
210 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (1 . 0) (5 . -1)) . (
211 ((raise . 0.8)"7(9, ")
212 ((raise . 0.3)(music (named ("accidentals--1"))))
213 ((raise . 0.8)"13)")))
214 ; dominant flat 9, flat 13 = 7(b9,b13)
215 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (1 . -1) (5 . -1)) . (
217 ((raise . 0.3)(music (named ("accidentals--1"))))
219 ((raise . 0.3)(music (named ("accidentals--1"))))
220 ((raise . 0.8)"13)")))
221 ; dominant sharp 9, flat 13 = 7(#9,b13)
222 (((0 . 0) (2 . 0) (4 . 0) (6 . -1) (1 . +1) (5 . -1)) . (
224 ((raise . 0.3)(music (named ("accidentals-1"))))
226 ((raise . 0.3)(music (named ("accidentals--1"))))
227 ((raise . 0.8)"13)")))
229 ;; diminished chord(s)
230 ; diminished seventh chord = o
233 ;; DONT use non-ascii characters, even if ``it works'' in Windows
235 ;;(((0 . 0) (2 . -1) (4 . -1) (6 . -2)) . ((raise . 0.8) (size . -2) ("o")))
236 (((0 . 0) (2 . -1) (4 . -1) (6 . -2)) . ("" (super "o")))
238 ;; half diminshed chords
239 ;; half diminished seventh chord = slashed o
240 ;; (((0 . 0) (2 . -1) (4 . -1) (6 . -1)) . (((raise . 0.8) "/o")))
241 (((0 . 0) (2 . -1) (4 . -1) (6 . -1)) . (rows ((raise . 1) "o") (((kern . -0.85) (raise . 1.1) (font-relative-size . -2)) "/") "7")) ; slashed o
243 ; half diminished seventh chord with major 9 = slashed o cancelation 9
244 (((0 . 0) (2 . -1) (4 . -1) (6 . -1) (1 . 0)) . (
246 ((raise . 0.3)(music (named ("accidentals-0"))))
247 ((raise . 0.8)"9)")));
249 ;; Missing jazz chord definitions go here (note new syntax: see american for hints)
252 chord::names-alist-american))
257 (define (pitch->note-name pitch)
258 (cons (cadr pitch) (caddr pitch)))
261 (define (accidental->text acc)
269 (append '((font-relative-size . -2))
270 (list (append '((raise . 0.6))
272 (string-append "accidentals-"
273 (number->string acc))))))))))))
276 (define (pitch->text pitch)
278 (make-string 1 (integer->char (+ (modulo (+ (cadr pitch) 2) 7) 65)))
279 (accidental->text (caddr pitch))
283 ;;; Hooks to override chord names and note names,
284 ;;; see input/tricks/german-chords.ly
286 (define (pitch->text-banter pitch)
289 (define (pitch->chord-name-text-banter pitch)
290 (pitch->text-banter pitch))
292 (define (pitch->note-name-text-banter pitch)
293 (pitch->text-banter pitch))
295 (define (step->text pitch)
297 (number->string (+ (cadr pitch) (if (= (car pitch) 0) 1 8)))
305 (define (step->text-banter pitch)
306 (if (= (cadr pitch) 6)
315 (define pitch::semitone-vec (list->vector '(0 2 4 5 7 9 11)))
317 (define (pitch::semitone pitch)
318 (+ (* (car pitch) 12)
319 (vector-ref pitch::semitone-vec (modulo (cadr pitch) 7))
322 (define (pitch::transpose pitch delta)
323 (let ((simple-octave (+ (car pitch) (car delta)))
324 (simple-notename (+ (cadr pitch) (cadr delta))))
325 (let ((octave (+ simple-octave (quotient simple-notename 7)))
326 (notename (modulo simple-notename 7)))
327 (let ((accidental (- (+ (pitch::semitone pitch) (pitch::semitone delta))
328 (pitch::semitone `(,octave ,notename 0)))))
329 `(,octave ,notename ,accidental)))))
331 (define (pitch::diff pitch tonic)
332 (let ((simple-octave (- (car pitch) (car tonic)))
333 (simple-notename (- (cadr pitch) (cadr tonic))))
334 (let ((octave (+ simple-octave (quotient simple-notename 7)
335 (if (< simple-notename 0) -1 0)))
336 (notename (modulo simple-notename 7)))
337 (let ((accidental (- (pitch::semitone pitch)
338 (pitch::semitone tonic)
339 (pitch::semitone `(,octave ,notename 0)))))
340 `(,octave ,notename ,accidental)))))
342 (define (pitch::note-pitch pitch)
343 (+ (* (car pitch) 7) (cadr pitch)))
345 (define (chord::step tonic pitch)
346 (- (pitch::note-pitch pitch) (pitch::note-pitch tonic)))
348 ;; text: list of word
349 ;; word: string + optional list of property
350 ;; property: align, kern, font (?), size
352 (define chord::minor-major-vec (list->vector '(0 -1 -1 0 -1 -1 0)))
354 ;; compute the relative-to-tonic pitch that goes with 'step'
355 (define (chord::step-pitch tonic step)
356 ;; urg, we only do this for thirds
357 (if (= (modulo step 2) 0)
359 (let loop ((i 1) (pitch tonic))
363 pitch `(0 2 ,(vector-ref chord::minor-major-vec
364 ;; -1 (step=1 -> vector=0) + 7 = 6
365 (modulo (+ i 6) 7)))))))))
367 ;; find the pitches that are not part of `normal' chord
368 (define (chord::additions chord-pitches)
369 (let ((tonic (car chord-pitches)))
370 ;; walk the chord steps: 1, 3, 5
371 (let loop ((step 1) (pitches chord-pitches) (additions '()))
373 (let* ((pitch (car pitches))
374 (p-step (+ (- (pitch::note-pitch pitch)
375 (pitch::note-pitch tonic))
377 ;; pitch is an addition if
379 ;; it comes before this step or
381 ;; its step is even or
382 (= (modulo p-step 2) 0)
383 ;; has same step, but different accidental or
385 (not (equal? pitch (chord::step-pitch tonic step))))
386 ;; is the last of the chord and not one of base thirds
388 (= (length pitches) 1)))
389 (loop step (cdr pitches) (cons pitch additions))
391 (loop step (cdr pitches) additions)
392 (loop (+ step 2) pitches additions))))
393 (reverse additions)))))
395 ;; find the pitches that are missing from `normal' chord
396 (define (chord::subtractions chord-pitches)
397 (let ((tonic (car chord-pitches)))
398 (let loop ((step 1) (pitches chord-pitches) (subtractions '()))
400 (let* ((pitch (car pitches))
401 (p-step (+ (- (pitch::note-pitch pitch)
402 (pitch::note-pitch tonic))
404 ;; pitch is an subtraction if
405 ;; a step is missing or
407 (loop (+ step 2) pitches
408 (cons (chord::step-pitch tonic step) subtractions))
409 ;; there are no pitches left, but base thirds are not yet done and
411 (= (length pitches) 1))
412 ;; present pitch is not missing step
414 (loop (+ step 2) pitches subtractions)
415 (loop (+ step 2) pitches
416 (cons (chord::step-pitch tonic step) subtractions)))
418 (loop (+ step 2) (cdr pitches) subtractions)
419 (loop step (cdr pitches) subtractions)))))
420 (reverse subtractions)))))
422 ;; combine tonic, user-specified chordname,
423 ;; additions, subtractions and base or inversion to chord name
425 (define (chord::inner-name-banter tonic user-name additions subtractions base-and-inversion)
428 (pitch->chord-name-text-banter tonic)
429 (if user-name user-name '())
430 ;; why does list->string not work, format seems only hope...
431 (if (and (string-match "super" (format "~s" user-name))
432 (or (pair? additions)
433 (pair? subtractions)))
436 (let loop ((from additions) (to '()))
438 (let ((p (car from)))
442 (list 'super (step->text-banter p))
443 (if (or (pair? (cdr from))
444 (pair? subtractions))
448 (let loop ((from subtractions) (to '()))
450 (let ((p (car from)))
455 (list 'super (step->text-banter p))
456 (if (pair? (cdr from))
460 (if (and (pair? base-and-inversion)
461 (or (car base-and-inversion)
462 (cdr base-and-inversion)))
464 (if (car base-and-inversion)
465 (pitch->note-name-text-banter
466 (car base-and-inversion))
467 (pitch->note-name-text-banter
468 (cdr base-and-inversion)))
473 (define (chord::name-banter tonic user-name pitches base-and-inversion)
474 (let ((additions (chord::additions pitches))
475 (subtractions (chord::subtractions pitches)))
476 (chord::inner-name-banter tonic user-name additions subtractions base-and-inversion)))
478 ;; american chordnames use no "no",
479 ;; but otherwise very similar to banter for now
480 (define (chord::name-american tonic user-name pitches base-and-inversion)
481 (let ((additions (chord::additions pitches))
483 (chord::inner-name-banter tonic user-name additions subtractions base-and-inversion)))
485 ;; Jazz style--basically similar to american with minor changes
486 (define (chord::name-jazz tonic user-name pitches base-and-inversion)
487 (let ((additions (chord::additions pitches))
489 (chord::inner-name-banter tonic user-name additions subtractions base-and-inversion)))
491 (define (new-to-old-pitch p)
493 (list (pitch-octave p) (pitch-notename p) (pitch-alteration p))
501 ;; Check for each subset of chord, full chord first, if there's a
502 ;; user-override. Split the chord into user-overridden and to-be-done
503 ;; parts, complete the missing user-override matched part with normal
504 ;; chord to be name-calculated.
506 ;; CHORD: (pitches (base . inversion))
507 (define (default-chord-name-function style chord)
508 (let* ((style-string (symbol->string style))
509 (pitches (map new-to-old-pitch (car chord)))
510 (modifiers (cdr chord))
511 (base-and-inversion (if (pair? modifiers)
512 (cons (new-to-old-pitch (car modifiers))
513 (new-to-old-pitch (cdr modifiers)))
515 (diff (pitch::diff '(0 0 0) (car pitches)))
517 (ly-eval (string->symbol (string-append "chord::name-" style-string))))
519 (ly-eval (string->symbol (string-append "chord::names-alist-" style-string)))))
520 (let loop ((note-names (reverse pitches))
523 (if (pair? note-names)
527 (pitch->note-name (pitch::transpose x diff)))
531 ;; urg? found: break loop
532 (loop '() chord (cdr entry))
533 (loop (cdr note-names) (cons (car note-names) chord) #f)))
534 (let* ((transposed (if pitches
535 (map (lambda (x) (pitch::transpose x diff)) chord)
537 (matched (if (= (length chord) 0)
539 (- (length pitches) (length chord))))
541 (append (do ((i matched (- i 1))
542 (base '() (cons `(0 ,(* (- i 1) 2) 0) base)))
546 (name-func (car pitches) user-name completed base-and-inversion))))))