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http://lyricwiki.org/Faith_No_More:Land_Of_Sunshine                    

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function StringToURLString(aString: String): String;
var i: integer;
begin
    result := '';
    for i := 1 to length(aString) do
      result := result + '%'  + IntToHex(Ord(aString[i]),2)
end;

function WordUppercase(s: String): String;
var
    i: Integer;
    tmp: String;
begin
    s := LowerCase(s);
    result := s;

    with TStringList.Create do try
        Delimiter := ' ';
        DelimitedText := s;
        for i := 0 to Count-1 do
            if (Strings[i] <> '') then
            begin
                tmp := Strings[i];
                tmp[1] := Upcase(tmp[1]);
                Strings[i] := tmp;
            end;
        Delimiter := '_';//#32;
        result := DelimitedText;
    finally
        Free;
    end;
end;                    

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LyricQuery := 'http://lyricwiki.org/api.php?func=getSong&artist='
                        + StringToURLString(WordUppercase(UTF8Encode((aArtist))))
                        + '&song='
                        + StringToURLString(WordUppercase(UTF8Encode((aTitel))))
                        + '&fmt=text';
myLyrics := idHttp1.Get(LyricQuery);                    

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TSearchThread = class(TThread)
    abort: Boolean;
    procedure Execute; override;
  end;

procedure TSearchThread.Execute;
begin
  [Quelltext zur LyricSuche mit schleife die die Datein durchzählt. 
   wenn abort = true bricht die schleife ab...]
end;

procedure TForm1.StartSearchClick(Sender: TObject);
var i: Integer;
begin    
  //SearchThread erstellen
  Thread := TSearchThread.Create(True);
  Thread.FreeOnTerminate := True;
  Thread.Resume;
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  if Assigned(Thread) then Thread.Terminate;
end;