diff options
Diffstat (limited to 'actions/ans.scm')
| -rw-r--r-- | actions/ans.scm | 141 |
1 files changed, 136 insertions, 5 deletions
diff --git a/actions/ans.scm b/actions/ans.scm index d9fabcd8..3b8bee7f 100644 --- a/actions/ans.scm +++ b/actions/ans.scm @@ -888,7 +888,7 @@ (d-MoveCursorLeft) (ANS::ChangeChordNotes ansNotes) (if duration ;If user gave duration parameter. Does not test if the duration is a valid number - (eval-string (string-append "(d-Change" (number->string duration) ")"))) ; TODO: eval string should be gone. And it does not support breve and longa! + (eval-string (string-append "(d-Change" (number->string duration) ")"))) (if (and dots (not (= dots 0))) ;If the user gave 0 as durations ignore that as well (let loop ((count 0)) (d-AddDot) @@ -918,6 +918,49 @@ ; +20 from "...eses" to plain. (+ 20 (* 50 (quotient ansNote 50)))) +;without enharmonic or chromatic versions. This functions simply is concerned about how it "sounds". +;Returns the half-tone step distance from C. +(define (ANS::GetHalfToneDistanceFromC ansNote) + (if (= ansNote +inf.0) + +inf.0 + (case (remainder ansNote 350) + ((00) 10) ; ceses,,, -> bes + ((10) 11) ; ces,,, -> b + ((20) 0) ; c,,, + ((30) 1) ; cis,,, + ((40) 2) ; cisis,,, -> d ... + ((50) 0) ; deses,,, + ((60) 1) ; des,,, + ((70) 2) ; d,,, + ((80) 3) ; dis,,, + ((90) 4) ; disis,,, + ((100) 2) ; eeses,,, + ((110) 3) ; ees,,, + ((120) 4) ; e,,, + ((130) 5) ; eis,,, + ((140) 6) ; eisis,,, + ((150) 3) ; feses,,, + ((160) 4) ; fes,,, + ((170) 5) ; f,,, + ((180) 6) ; fis,,, + ((190) 7) ; fisis,,, + ((200) 5) ; geses,,, + ((210) 6) ; ges,,, + ((220) 7) ; g,,, + ((230) 8) ; gis,,, + ((240) 9) ; gisis,,, + ((250) 7) ; aeses,,, + ((260) 8) ; aes,,, + ((270) 9) ; a,,, + ((280) 10) ; ais,,, + ((290) 11) ; aisis,,, + ((300) 9) ; beses,,, + ((310) 10) ; bes,,, + ((320) 11) ; b,,, + ((330) 0) ; bis,,, + ((340) 1) ; bisis,,, + (else #f)))) + ;Alteration adds a sharp, flat or nothing to a ans-note. Returns an ANS ;number. Wants an ans number and a procedure that will return either 0, 1 or -1. (define (ANS::Alteration ansNote modificator) @@ -988,9 +1031,11 @@ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;Analaysis;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; -;Convert two ANS notes to one ANS interval +;Convert two ANS notes to one ANS interval, ignores octaves. +;TODO: Give out the octave between. ;Return pair in pair: (intervall (lower . higher)) -(define (ANS::GetIntervall ansNoteOne ansNoteTwo) +;Yes, I made a typo in Intervall. +(define (ANS::GetIntervall ansNoteOne ansNoteTwo) (define higher ansNoteOne) (define lower ansNoteTwo) (if (<= ansNoteOne ansNoteTwo) ; bring the notes in right order. We want to calculate from top to bottom. @@ -1000,15 +1045,101 @@ ;Extract the tone, without octave and feed it to the hash to get the notes position in the pillar of 5th. (cons (- (hashq-ref ANS::PillarOfFifthIndex (ANS::GetNote higher)) (hashq-ref ANS::PillarOfFifthIndex (ANS::GetNote lower))) - (cons ansNoteTwo ansNoteOne))) ; do NOT return the ordered invervals. Return as they came in. + (cons ansNoteTwo ansNoteOne))) ; do NOT return the ordered or simplified invervals. Return as they came in. ;GetIntervall for lists. ;Converts a list of pairs(lower note and higher ANS note) to a list of interval numbers (ans syntax. steps in the pillar of 5th) -(define (ANS::CreateIntervalsFromPairs listy) ;Wants a list of pairs. +;Wants a list of pairs +(define (ANS::CreateIntervalsFromPairs listy) (define (GetIntv pair) (ANS::GetIntervall (car pair) (cdr pair))) (map GetIntv listy)) + +; Wants a number from ANS::GetIntervall +; Returns a number which represents the simplest "sounding" interval. +; For example: c - gis becomes c -as and therefore a minor sixth. All Tritoni are represented as augmented 4th. +; There has to be made a decision if the "higher" interval is sounding lower like diminished 1 or double diminished 2. Is C - Ces M7 or m2? For Denemo all intervals are from bottom to top so ces is M7. +; Augmented Prime and Diminished Octave have to build an Octave; so do have Augmented Octave and Diminished Prime. +; With the normal system a double diminished second has to be treated as Major Seventh! Or not? Its confusing. +(define (ANS::Interval->Sound interval) + (case interval + ((0) 0) ;P1 + ((-5) -5) ;m2 + ((2) 2) ;M2 + ((-3) -3) ;m3 + ((4) 4) ;M3 + ((-1) -1) ;P4 + ((6) 6) ;T + ((1) 1) ;P5 + ((-4) -4) ;m6 + ((3) 3) ;M6 + ((-2) -2) ;m7 + ((5) 5) ;M7 + ;Augmentend, Diminished + ((7) -5) ;A1 + ((-7) 5) ;D1 ; ALERT + ((9) -3) ;A2 + ((-12) 0) ;D2 + ((11) -1) ;A3 + ((-10) 2) ;D3 + ((6) 6) ;A4 + ((-8) 4) ;D4 + ((8) -4) ;A5 + ((-6) 6) ;D5 + ((10) -2) ;A6 + ((-11) 1) ;D6 + ((12) 0) ;A7 + ((-9) 3) ;D7 + #! ;Double Augmented, Double Diminished + ((14) ) ;AA1 + ((-14) ) ;DD1 + ((16) ) ;AA2 + ((-19) ) ;DD2 + ((18) ) ;AA3 + ((-17) ) ;DD3 + ((13) ) ;AA4 + ((-15) ) ;DD4 + ((15) ) ;AA5 + ((-13) ) ;DD5 + ((17) ) ;AA6 + ((-18) ) ;DD6 + ((19) ) ;AA7 + ((-16) ) ;DD7 + ;Triple Augmented, Triple Diminished + ((21) ) ;AAA1 + ((-21) ) ;DDD1 + ((23) ) ;AAA2 + ((-26) ) ;DDD2 + ((25) ) ;AAA3 + ((-24) ) ;DDD3 + ((20) ) ;AAA4 + ((-22) ) ;DDD4 + ((22) ) ;AAA5 + ((-20) ) ;DDD5 + ((24) ) ;AAA6 + ((-25) ) ;DDD6 + ((26) ) ;AAA7 + ((-23) ) ;DDD7 + ;Quadruple Augmented, Quadruple Diminished + ((28) ) ;AAAA1 + ((-28) ) ;DDDD1 + ((30) ) ;AAAA2 + ((-33) ) ;DDDD2 + ((32) ) ;AAAA3 + ((-31) ) ;DDDD3 + ((27) ) ;AAAA4 + ((-29) ) ;DDDD4 + ((29) ) ;AAAA5 + ((-27) ) ;DDDD5 + ((31) ) ;AAAA6 + ((-32) ) ;DDDD6 + ((33) ) ;AAAA7 + ((-30) ) ;DDDD7 + ;Quintuple Augmented, Quintuple Diminished. Only feses to bisis, the Final Frontier. + ((34) ) ;AAAAA4 + ((-34) ) ;DDDDD5 !# + (else #f))) ;ANS::IntervalMember? checks if a forbidden interval is in the given list ;;Wants a list of ans intervals, returns #t or #f |