added: weak beat

app.py

@@ -69,10 +69,15 @@ def convert_table_to_audio(markdown_table, resolution=8, bpm = 120.0):
     for i in range(len(rhythm_pattern)):
         for j in range(1, len(rhythm_pattern[i])):
             inst = rhythm_pattern[i][0].strip().upper()
+            velocity = 0
             if 'x' == rhythm_pattern[i][j].strip():
+                velocity = 120
+            if 'o' == rhythm_pattern[i][j].strip():
+                velocity = 65
+            if velocity > 0:
                 if inst in MIDI_NOTENUM.keys():
                     midinote = MIDI_NOTENUM[inst]
-                    note = pretty_midi.Note(velocity=80, pitch=midinote, start=note_length * (j-1)+0.05, end=note_length * j)
+                    note = pretty_midi.Note(velocity=velocity, pitch=midinote, start=note_length * (j-1)+0.05, end=note_length * j)
                     pm_inst.notes.append(note)
 
     # convert to audio