Mauch MIREX 2010

function write_song2(song, bnet, param, outfilename, filetype, verbose)

prelabels = {'C','Db','D','Eb','E','F','Gb','G','Ab','A','Bb','B','N'};

chordindex = bnet.names('chord');

metposindex = bnet.names('metpos');

if param.dbn.nKey > 0

    keyindex = bnet.names('key');

end

switch filetype

    case 'chordlab'

        chordsequence = [song.mpe{chordindex,:}];

        oldchord = 0;

        oldlabel ='N';

        outfile = fopen(outfilename,'w');

        if verbose

            fprintf(1, '0.0 ');

        end

        fprintf(outfile, '0.0 ');

        for iChord= 1:length(chordsequence)

            newchord = song.mpe{chordindex, iChord};

            if newchord ~= oldchord

                if param.dbn.nKey > 0

                    keylabel = param.dbn.keynames{song.mpe{keyindex,iChord}};

                else

                    keylabel = 'C';

                end

                if ischar(param.dbn.chordnames{newchord})

                    prelabel = ['C',param.dbn.chordnames{newchord}];

                    [c.rootnote, c.shorthand, c.degreelist, c.bassdegree, success, error] =...

                        getchordinfo(prelabel);

                    c.string = addshort2list(c.shorthand, c.degreelist);

                    label = [chordroot_spelling(keylabel, param.dbn.chordrootnotes(newchord)-1 ,strsplit(',',c.string)),param.dbn.chordnames{newchord}];

                else

                    label = 'N';

                end

                if verbose

                    fprintf(1,'%0.3f %s\n%0.3f ', song.beattimes(iChord,1), oldlabel,song.beattimes(iChord,1));

                end

                fprintf(outfile,'%0.3f %s\n%0.3f ', song.beattimes(iChord,1), oldlabel,song.beattimes(iChord,1));

                oldlabel = label;

            end

            oldchord = newchord;

        end

        if verbose

            fprintf(1,'%0.3f %s', song.beattimes(iChord,2), oldlabel);

        end

        fprintf(outfile,'%0.3f %s', song.beattimes(iChord,2), oldlabel);

        fclose(outfile);

    case 'keylab'

        keysequence = [song.mpe{keyindex,:}];

        oldkey = 0;

        oldlabel ='N';

        outfile = fopen(outfilename,'w');

        if verbose

            fprintf(1, '0.0 ');

        end

        fprintf(outfile, '0.0 ');

        for iKey = 1:length(keysequence)

            newkey = song.mpe{keyindex, iKey};

            if newkey ~= oldkey

                keylabel = param.dbn.keynames{song.mpe{keyindex,iKey}};

                if verbose

                    fprintf(1,'%0.3f %s\n%0.3f ', song.beattimes(iKey,1), oldlabel,song.beattimes(iKey,1));

                end

                fprintf(outfile,'%0.3f %s\n%0.3f ', song.beattimes(iKey,1), oldlabel,song.beattimes(iKey,1));

                oldlabel = keylabel;

            end

            oldkey = newkey;

        end

        if verbose

            fprintf(1,'%0.3f %s', song.beattimes(iKey,2), oldlabel);

        end

        fprintf(outfile,'%0.3f %s', song.beattimes(iKey,2), oldlabel);

        fclose(outfile);

    case 'lilypond'

        bassindex = bnet.names('bass');

        lilychordnames = repmat(param.dbn.lilytypechordnames,[1,12]);

        lilychordnames{numel(lilychordnames)+1} = '';

        chordsequence = [song.mpe{chordindex,:}];

        nBeat = length(chordsequence);

        keysequence = [song.mpe{keyindex,:}];

%         label = cell(nBeat,1);

%         keylabel = cell(nBeat,1);

        metpossequence = [song.mpe{metposindex,:}];

        oldchord = 0;

        oldkey = 0;

        oldbass = 0;

        chordcount = 0;

        basscount = 0;

        chordduration = 1;

        bassduration = 1;

        % time signature stuff

        partial = find(metpossequence == 1,1)-1;

        if partial > 0

            partial = ['\partial ' lilylength(partial)];

        else 

            partial = '';

        end

        barlines = find(metpossequence == 1);

        timesig = diff(barlines); % for barlines, not beats

        ind = min(length(timesig),union(find(timesig~=4),find(timesig~=4)+1));

        non4timesig = barlines(ind);  % in beats

        timesig = timesig(ind);

        % chord and bass loop

        for iBeat= 1:length(chordsequence)

            newchord = song.mpe{chordindex, iBeat};

            newkey = song.mpe{keyindex, iBeat};

            newbass = song.mpe{bassindex, iBeat};

            newmetpos = song.mpe{metposindex, iBeat};

            if param.dbn.nKey > 0

                prekeylabel = param.dbn.keynames{song.mpe{keyindex,iBeat}};

            else

                prekeylabel = 'C';

            end

            if newchord ~= oldchord  || newmetpos == 1 || chordduration == 4

                % get the chord name

                chordcount = chordcount + 1;

                if iBeat > 1

                    chordlabelduration(chordcount-1) = chordduration;

                end

                if ischar(param.dbn.chordnames{newchord})

                    preroot = spellnote(newkey, param.dbn.chordrootnotes(newchord),'lily');

                    root{chordcount} = preroot;

                    if isempty(strfind(param.dbn.chordnames{newchord},'/'))

                        label{chordcount} = lilychordnames{newchord};

                    else

                        bass = spellnote(newkey, param.dbn.chordbassnotes(newchord),'lily');

                        label{chordcount} = [strrep(lilychordnames{newchord},' ',''),'/',bass];

                    end

                else

                    root{chordcount} = 'r';

                    label{chordcount} = '';

                end

                chordbeat(chordcount) = iBeat;

%                 oldlabel = label{iBeat};

                chordduration = 1;

            else

                chordduration = chordduration + 1;

            end

            if oldkey ~= newkey

                keylabel{iBeat} = param.dbn.lilykeynames{song.mpe{keyindex,iBeat}};

%                 keylabel{iBeat} = strrep(keylabel{iBeat},'#','is');

%                 keylabel{iBeat} = strrep(keylabel{iBeat},'b','es');

%                 keylabel{iBeat} = lower(keylabel{iBeat});

%                 oldkeylabel = keylabel{iBeat};

            end

            if oldbass ~= newbass || newmetpos == 1 || bassduration == 4

                basscount = basscount + 1;

                if iBeat > 1

                    basslabelduration(basscount-1) = bassduration;

                end

                basslabel{basscount} = spellnote(newkey, param.dbn.chordbassnotes(newbass),'lily');

                bassbeat(basscount) = iBeat;

                bassduration = 1;

            else                

                bassduration = bassduration + 1;

            end

            oldbass = newbass;

            oldkey = newkey;

            oldchord = newchord;

        end

        % finish off the durations etc

        basslabelduration(basscount) = bassduration;

        chordlabelduration(chordcount) = chordduration;

        chord_string = 'chordsymb = { \chordmode { ';

        bass_string = 'bassnotes = { \override TextScript #''box-padding = #.7 \override TextScript #''font-size = #-3 \override TextScript #''thickness = #.03 \clef bass';

        for iBeat = 1:nBeat

            chordind = find(chordbeat == iBeat);

            bassind = find(bassbeat == iBeat);

            timesigind = find(non4timesig == iBeat);

            if ~(iBeat > numel(keylabel) || isempty(keylabel{iBeat}))

                chord_string = [chord_string sprintf('  } \\key %s \\chordmode { ', keylabel{iBeat})];

                bass_string = [bass_string sprintf(' \\key %s', keylabel{iBeat})];

            end

            if ~isempty(chordind)

                if ~isempty(timesigind)

                    chord_string = [chord_string sprintf(' \\time %0.0f/4',timesig(timesigind))];

                end

                chord_string = [chord_string sprintf(' %s%s%s',root{chordind}, lilylength(chordlabelduration(chordind)), label{chordind})];

            end

            if ~isempty(bassind)

                bass_string = [bass_string sprintf(' %s%s',basslabel{bassind},lilylength(basslabelduration(bassind)))];

            end

        end

        fid = fopen(outfilename);

        fprintf(fid,'\\header{title = "%s"}\n%s}}\n%s\n}\n<<\n\\new ChordNames {\n\\set chordChanges = ##t\n%s\n\\chordsymb\n\n}\n\\new Voice {\n\\chordsymb\n}\n\\new Voice {\n\\bassnotes\n}\n>>\n\\version "2.10.33"\n',...

            song.filenametrunk, chord_string, bass_string, partial);

        fclose(fid);

        if verbose

            fprintf(1,'\\header{title = "%s"}\n%s}}\n%s\n}\n<<\n\\new ChordNames {\n\\set chordChanges = ##t\n%s\n\\chordsymb\n\n}\n\\new Voice {\n\\chordsymb\n}\n\\new Voice {\n\\bassnotes\n}\n>>\n\\version "2.10.33"\n',...

                song.filenametrunk, chord_string, bass_string, partial);

        end

end

function L = lilylength(beats)

switch beats

    case 1

        L = '4';

    case 2

        L = '2';

    case 3

        L = '2.';

    case 4

        L = '1';

end