scripts/auxiliar/musicxml_generate_intervals.py

   1 #!/usr/bin/env python
   2
   3 notes = "CDEFGAB"
   4 alterations = [-1, 0, 1]
   5
   6 def print_note (octave, note, alteration):
   7     print "      <note>\n        <pitch>\n          <step>%s</step>" % notes[note]
   8     if alteration <> 0:
   9         print "          <alter>%s</alter>" % alteration
  10     print "          <octave>%s</octave>\n        </pitch>\n        <duration>1</duration>\n        <voice>1</voice>\n        <type>quarter</type>\n      </note>" % octave
  11
  12
  13 print """<?xml version="1.0" encoding="UTF-8"?>
  14 <!DOCTYPE score-partwise PUBLIC "-//Recordare//DTD MusicXML 1.0 Partwise//EN"
  15                                 "http://www.musicxml.org/dtds/partwise.dtd">
  16 <score-partwise>
  17   <movement-title>Various piches and interval sizes</movement-title>
  18   <part-list>
  19     <score-part id="P1">
  20       <part-name>MusicXML Part</part-name>
  21     </score-part>
  22   </part-list>
  23   <!--=========================================================-->
  24   <part id="P1">
  25     <measure number="1">
  26       <attributes>
  27         <divisions>1</divisions>
  28         <key>
  29           <fifths>0</fifths>
  30           <mode>major</mode>
  31         </key>
  32         <time symbol="common">
  33           <beats>2</beats>
  34           <beat-type>4</beat-type>
  35         </time>
  36         <clef>
  37           <sign>G</sign>
  38           <line>2</line>
  39         </clef>
  40       </attributes>
  41 """
  42
  43 start_octave = 5
  44
  45 for octave in (start_octave, start_octave+1):
  46     for note in (0,1,2,3,4,5,6):
  47         for alteration in alterations:
  48             if octave == start_octave and note == 0 and alteration == -1:
  49                 continue
  50             print_note (octave, note, alteration)
  51 #             if octave == start_octave and note == 0 and alteration == 0:
  52 #                 continue
  53             print_note (start_octave-(octave-start_octave)-(1-(7-note)/7), (7-note)%7, -alteration)
  54
  55 print """    </measure>
  56   </part>
  57 </score-partwise>
  58 """