christopherh@1: % christopherh@1: %NOTE2FIFTHPOSITION find note position on the line of fifths w.r.t. C=0 christopherh@1: % christopherh@1: % [noteposition, success, errormessage] = note2fifthposition(note,{verbose}) christopherh@1: % christopherh@1: % Converts a note string to a natural position on the line of fifths and its christopherh@1: % corresponding number of sharps or flats. Reference on line of fifths is C = 0. christopherh@1: % christopherh@1: % Success = 1 if note converted correctly, 0 otherwise. christopherh@1: % christopherh@1: % If optional argument 'verbose' is 1, function prints any errormessage to christopherh@1: % the screen. christopherh@1: % christopherh@1: % calls: note2fifthinfo christopherh@1: % christopherh@1: % returns: noteposistion (integer) christopherh@1: % success (boolean) christopherh@1: % errormessage (string) christopherh@1: % christopherh@1: % christopherh@1: % Author: Christopher Harte, March 2009 christopherh@1: % christopherh@1: % Copyright: Centre for Digital Music, Queen Mary University of London 2005 christopherh@1: % christopherh@1: % This file is part of the C4DM Chord Toolkit V2.0 christopherh@1: % christopherh@1: % The C4DM Chord Toolkit is free software; you can redistribute it and/or christopherh@1: % modify it under the terms of the GNU General Public License as published christopherh@1: % by the Free Software Foundation; either version 2 of the License, or christopherh@1: % (at your option) any later version. christopherh@1: % christopherh@1: % The C4DM Chord Toolkit is distributed in the hope that it will be useful, christopherh@1: % but WITHOUT ANY WARRANTY; without even the implied warranty of christopherh@1: % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the christopherh@1: % GNU General Public License for more details. christopherh@1: % christopherh@1: % You should have received a copy of the GNU General Public License christopherh@1: % along with the C4DM Toolkit; if not, write to the Free Software christopherh@1: % Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA christopherh@1: christopherh@1: % christopherh@1: function [noteposition, success, errormessage] = note2fifthposition(note, verbose) christopherh@1: christopherh@1: % set verbose default to 0 christopherh@1: if nargin < 3 christopherh@1: verbose = 0; christopherh@1: end christopherh@1: christopherh@1: errormessage = ''; christopherh@1: success = 1; christopherh@1: noteposition = ''; christopherh@1: christopherh@1: [notenatural, noteaccidentals, success1,errormessage] = note2fifthinfo(note); christopherh@1: christopherh@1: if success christopherh@1: noteposition = notenatural + 7.*noteaccidentals -1; christopherh@1: end christopherh@1: christopherh@1: if (success == 0) && (verbose == 1) christopherh@1: fprintf(1,errormessage); christopherh@1: end christopherh@1: