BTW, the one non musical program is the html-editor newsec.pl

limbifur

bifur

clevercad

Generates notes from text. However, instead of taking a standard letter-to-note function, such as
a,e,i,o,u → FA/LA,RE,MI,SOL,UT
or the plain
a,b,c,d,e,f,g,h → LA,SIb,DO,RE,MI,FA,SOL,LA,SI,
the letters are arbitrarily assigned to notes, under the following constraints:
The end product is a melody built of all the translated letters, plus supporting chords for the cadences.

enigma

Given a melody, it builds several voices based on a harmoniztion of the melody. When music plays, the melody may be omitted – a true enigma.

The instruction:

perl  drenig.pl   file_lhom     rand_345     dur_100     with      orc
will produce a score named  enig345  and the corresponding midi file  enig345.mid.

All the parameters except the first are optional. Their interpretation is as follows:

file_scorename
Must appear; scorename is the name of the file to be processed by tondur.

rand_seed
The number seed is used to initialize the random numbers generator.

dur_value
the larger the value, the longer the piece. Duration is increased by repeating the "enigma" tune.

with
if specified, the enigma tune will be sounded with the other voices. If omitted, the enigma tune will not be heard.

orc
if specified, the voices will be assigned to various instruments; if omitted, they are all played on the piano.
The piano score may be unplayable by one pianist – then assume a player piano, or piano four hands, or two pianos.
The driver program executes two other programs:
  1. tondur.pl

    The instruction is:

    perl  tondur.pl   file_scorename
    This reads a score and prepares the input for     enig.pl , the file scorenamen0 (attach "n0" to scorename ). It takes one obligatory parameter, the name of the input score.

    Examples:

    input:      lhom    (L'Homme Armé) 
    
{L'Homme Arme}
key 1b
names drm
s5 /2 s/4 d/2 d/4 i l/2 s 3/4 r5 /4 r s5 p r6 r  r d/2 i/4 l/2
s 3/4 r6 /4 r r s5 3/4 s6 /2 s/4 f/2 f/4 s/2 s/4 r 3/4 s6 /2 s/4 f/2 f/4 
s/2 s/4 r/2 s/4 l/2 s/4 f m/2 r 3/4 p  s5 /2 s/4 d/2 d/4 
i l/2 s 3/4 r5 /4 r s5 p r6 r  r d/2 i/4 l/2 s 3/4

    output:      lhomn0 
    67 1/2
67 1/4
72 1/2
72 1/4
70 1/4
69 1/2
67 3/4
62 1/4
62 1/4
67 1/4
-1 1/4
74 1/4
.
.
74 1/4
74 1/4
72 1/2
70 1/4
69 1/2
67 3/4
    The input score may contain key instructions (in this case key specifies 1 flat) and names instructions ( in this case, d r m ... = Do Re Mi ... = C D E ... ; rest is p). The program also recognizes comments: text in braces, both braces on the same line, text may not contain braces. Tones and duration may be specified as in my usual music editor, except that + and –  are not available for octave, and fractions cannot be written as numerator only.

  2. enig.pl

    This program

    • receives its parameters from the driver
    • reads the outputof tondur.pl
    • analyzes the input, to determine the key of the piece – any of the keys that contain all the notes of the "enigma" melody. If no standard key fits, the program will use all the 12 (semi)tones.
    • writes the score.

chordur

Reads chords, and writes several output files. The files contain notes (as midi numbers) and durations as fractions, plus comments in braces.

The input is always named inin.txt, and contains a score in my notation, somewhat simplified. Besides chords, tones and durations it may have key instructions and names instructions . There are also comments in braces, but the comments must fit on one line and the braces don't nest. Some comments are meaningful, e.g. the first one shows that the music following is the ground, called "All hail".
names abhc means I use the German notation for pitches, B is B flat and H is B natural.

   {ground all-hail}
   	names abhc		
   		key 0b
   p 7/4 p/8   a5 /8 b 3/8 a/8 e6 3/4 
   a5 /4 c bb 
   		key 2# 
   e6 /2 b/4 p/8   a/8				{line 1}
   b5 /4 a,c a# e6 g5 /2 a
        .
        .
        .
The output files are ground-identifier or filler-identifier, ideally one ground and several fillers.

  inin.txt   ground-allhail   filler1   filler2 
   {ground all-hail}
   	names abhc		
   		key 0b
   p 7/4 p/8   a5 /8 b 3/8 a/8 e6 3/4 
   a5 /4 c bb 
   		key 2# 
   e6 /2 b/4 p/8   a/8						{line 1}
   b5 /4 a,c a# e6 g5 /2 a
   		key 3#
   e5 /2 p 3/8    a5 /8 b 3/8 a/8 a,c,e 3/4 f6 /4 c6 a#		{line 2}
   e5 /4 b4 b/6 f5 d
   		key 2b
   g5 /2 p 3/8   a4,a4 /8 b,b 3/8 a,a/8 e5,e 3/4   a5 /4 c b 
     e6 /2 g5 /4 p  e/4 g/2   a5 /4 g/2 f/2
    
   {filler} 
   names abhc		
   		key 0b
   		f5 /4 c b d h4 f d b 1/4 f 3/16 c 1/16 g 1/2
   
   {filler} names abhc		
   		key 0b
   a4 /4 c b e h a d b 1/4 f 1/8 c 1/8 g 1/2
    
   {ground all-hail} 
   -1 7/4
   -1 1/8
   69 1/8
   70 3/8
   69 1/8
   76 3/4
   69 1/4
   72 1/4
   69 1/4
   76 1/2
   70 1/4
   -1 1/8
   69 1/8
   
   {line 1}
   70 1/4
   69 73 1/4
   70 1/4
   76 1/4
   67 1/2
   69 1/2
   64 1/2
   -1 3/8
   69 1/8
   70 3/8
   69 1/8
   69 73 76 3/4
   78 1/4
   73 1/4
   70 1/4
   
   {line 2}
   64 1/4
   58 1/4
   58 1/6
   66 1/6
   62 1/6
   67 1/2
   -1 3/8
   57 57 1/8
   58 58 3/8
   57 57 1/8
   63 63 3/4
   69 1/4
   72 1/4
   70 1/4
   75 1/2
   67 1/4
   -1 1/4
   63 1/4
   67 1/2
   69 1/4
   67 1/2
   65 1/2
   
   {filler}
   65 1/4
   60 1/4
   58 1/4
   62 1/4
   59 1/4
   53 1/4
   50 1/4
   46 1/4
   41 3/16
   36 1/16
   31 1/2
   
   {filler}
   57 1/4
   60 1/4
   58 1/4
   52 1/4
   47 1/4
   45 1/4
   50 1/4
   46 1/4
   41 1/8
   36 1/8
   31 1/2

tondur

Like chordur, but cannot read chords, just single notes. Does not produce multiple outputs.
Actually, a subprogram of enigma.

filler

Reads the ground... and filler... files prepared by chordur, and adds fillers over the ground, transposed for optimized harmony.

                 not quite ready

  • input not ready for several files, names must be passed from chordur
  • works with only one filler
  • does not understand chords at all, not in ground, nor in fillers
  • needs clever count to decide how many voices are filled and how many empty ( routine gap )        

motltr

Reads somethind like this: 

METER 4

RHY /u
dou`ble| bub`ble| 
FINIS
RHY /u

An`gus|
Ban`quo|
Ban`quo pro`ge`ny| 
   .
   .
   .

and outputs something like this:

double bubble trouble cauldron
INITIALLY do u - b l e |, b u b - b l e |,
domaj do do - sib la mi*re |, sib do sib - sib la mi*re |
_dou - ble|, _trou - ble|,

There are syllable separators and feet separators (these are sprung rhythm feet). If the program were really automatic, it would use the table to set pitch and durations so the stressed syllables (with underscores) fall on strong beats, and the feet (separated by pipes) have the same length. For now, nothing really matters, just the translation:

A   to   FA/LA
E RE
I MI
O SOL
U UT
A   to LA
B SI bemol
C DO
D RE
E MI
F FA
G SOL
H SI
 
plus a few German curios:
 
CIS   to C sharp
ES E flat
   etc...

It was supposed to turn text into motifs... not very successful

falaltr

Another version of motltr, much more streamlined and adapted to produce input for xcab.

Without syllable separators and feet separators. It just performs letter to note translation. Typical input (always called inin ) : 

METER 6
RHY u/

             Macbethes doom

FINIS
Typical output: 
(fa,la);(fa;la) do sib mi;re si mib (re_sol);do sol
The notes appear as solmization syllables do re mi fa sol la si, with sharps and flats (b) as needed. The brackets, underscores and semicolons indicate admissible variations:
The silly spelling 'Macbethes' generates an E flat (mib) from 'es'.

Alas! the resulting music has nothing to do with doom.

xcab

"Extended cabbage" : my old cabbage program, modified to take input from falaltr, so it will play all kinds of melodies, not just C A B B A G E. The instruction to run it is:
perl  xcab.pl   file_falaname     rand_345     n9_10
The first parameter is obligatory, it specifies that falaname or falaname.txt is the file prepared by falaltr. The other parameters are optional; the parameter
          n9_size
specifies the size of a random sample of all the possible variations that may be generated from falaname.

See (actually hear) music made from the text "Macbeth's doom" .

                 to do:

        maybe I don't really need a random canon as end result