More examples and some minor fixes

examples/music21/create_midi_file.py

@@ -1,20 +1,26 @@
 from music21 import *
 from ziffers import *
 
-
 # Create melody string
 melody = "q 0 2 4 r e 1 4 3 2 s 0 1 2 6 e 2 8 2 1 h 0"
-#bass_line = "(q 0 2 4 6 e 1 4 3 2 s 0 1 2 6 e 2 8 2 1 h 0)-7"
+bass_line = "(q 0 2 4 6 e 1 4 3 2 s 0 1 2 6 e 2 8 2 1 h 0)-(7)"
 
 # Parse ziffers notation to melody from string
 parsed = zparse(melody)
-#parsed_bass = zparse(bass_line)
+parsed_bass = zparse(bass_line)
 
-# Convert to music21 object
-s2 = to_music21(parsed, time="4/4")
+# Convert to music21 objects
+part1 = to_music21(parsed, time="4/4")
+part2 = to_music21(parsed_bass, time="4/4")
 
-# Merge melody and bass line
-#s2.append(to_music21(parsed_bass, time="4/4"))
+# Add instruments
+part1.insert(instrument.Piano())
+part2.insert(instrument.Soprano())
+
+# Create score
+song = stream.Score()
+song.insert(0,part1)
+song.insert(0,part2)
 
 # Write to midi file under examples/music21/midi folder
-s2.write('midi', fp='examples/music21/output/ziffers_example.mid')
+song.write('midi', fp='examples/music21/output/ziffers_example.mid')

examples/music21/show_in_musescore.py

@@ -2,7 +2,7 @@ from music21 import *
 from ziffers import *
 
 # Parse Ziffers string to music21 object
-s = to_music21('(i v vi vii^dim)@(q0 e 2 1 q 012)', scale="Lydian", time="4/4")
+s = to_music21('(i v vi vii^dim)@(q0 e 2 1 q 012)', key="d3", scale="Minor", time="4/4", bpm=190)
 
 # See https://web.mit.edu/music21/doc/installing/installAdditional.html
 # Attempt to open / show the midi in MuseScore