matthiasm@8: %
matthiasm@8: %NOTE2FIFTHPOSITION find note position on the line of fifths w.r.t. C=0
matthiasm@8: % 
matthiasm@8: % [noteposition, success, errormessage] = note2fifthposition(note,{verbose})
matthiasm@8: % 
matthiasm@8: % Converts a note string to a natural position on the line of fifths and its 
matthiasm@8: % corresponding number of sharps or flats. Reference on line of fifths is C = 0.
matthiasm@8: % 
matthiasm@8: % Success = 1 if note converted correctly, 0 otherwise.
matthiasm@8: % 
matthiasm@8: % If optional argument 'verbose' is 1, function prints any errormessage to 
matthiasm@8: % the screen.
matthiasm@8: % 
matthiasm@8: % calls: 	note2fifthinfo
matthiasm@8: %
matthiasm@8: % returns:  noteposistion (integer)
matthiasm@8: %           success (boolean)
matthiasm@8: %           errormessage (string)
matthiasm@8: % 
matthiasm@8: %
matthiasm@8: % Author: Christopher Harte,  September 2005
matthiasm@8: % 
matthiasm@8: % Copyright: Centre for Digital Music, Queen Mary University of London 2005 
matthiasm@8: %
matthiasm@8: % This file is part of the C4DM Chord Toolkit.  
matthiasm@8: %
matthiasm@8: % The C4DM Chord Toolkit is free software; you can redistribute it and/or 
matthiasm@8: % modify it under the terms of the GNU General Public License as published 
matthiasm@8: % by the Free Software Foundation; either version 2 of the License, or
matthiasm@8: % (at your option) any later version.
matthiasm@8: %
matthiasm@8: % The C4DM Chord Toolkit is distributed in the hope that it will be useful,
matthiasm@8: % but WITHOUT ANY WARRANTY; without even the implied warranty of
matthiasm@8: % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
matthiasm@8: % GNU General Public License for more details.
matthiasm@8: %
matthiasm@8: % You should have received a copy of the GNU General Public License
matthiasm@8: % along with the C4DM Toolkit; if not, write to the Free Software
matthiasm@8: % Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
matthiasm@8: 
matthiasm@8: %		
matthiasm@8: function [noteposition, success, errormessage] = note2fifthposition(note, verbose)
matthiasm@8: 
matthiasm@8: % set verbose default to 0
matthiasm@8: if nargin < 3
matthiasm@8:    verbose = 0;
matthiasm@8: end
matthiasm@8: 
matthiasm@8: errormessage = '';
matthiasm@8: success = 1;
matthiasm@8: noteposition = '';
matthiasm@8: 
matthiasm@8: [notenatural, noteaccidentals, success1,errormessage] = note2fifthinfo(note);
matthiasm@8: 
matthiasm@8: if success
matthiasm@8:     noteposition = notenatural + 7.*noteaccidentals -1;
matthiasm@8: end        
matthiasm@8:             
matthiasm@8: if (success == 0) && (verbose == 1)   
matthiasm@8:     fprintf(1,errormessage);
matthiasm@8: end  
matthiasm@8: