Define individual variables for melodies, rhythms. Try aim for 30 beats minimum

# Define individual variables for melodies, rhythms. Try aim for 30 beats minimum. 
intro_lyrics_array = ['lyrics', 'are', 'optional', ...], #Define lyrics array, matching melody length
verse_lyrics_array = ['third', 'note', '', 'no lyric', ...],  # Empty string if no word for note
intro_melody = ['A4', 'E4', ['C4', 'E4', 'G4'], ...]  # Define music21 note inputs e.g. 'A4' and music21 chord array inputs e.g. ['C4', 'E#4', 'G4'] both go into melodies
verse_melody = ['E4', 'F#4', 'G-4', 'rest', ...'] # Example for defining Sharps, Flats and rests
intro_rhythm = [1, 1, 1, 1, ...]  # Define rhythm for chords, notes and rest. Each element is 1 beat
verse_rhythm = [0.5, 0.5, 0.5, 0.5, ...]  # Each element is half a beat
intro_dynamics = ['mp', 'mp', 'f', ...]  # Array of dynamics for each note/chord in 'intro' optional
verse_dynamics = ['mf', 'mf', 'mf', ...]  # Array of dynamics for each note/chord in 'verse' optional

song_structure = ['intro', 'verse', 'intro', ...] # Required,  Define song structure with section labels, e.g. play notes in intro -> play notes in verse -> replay notes in intro

# To avoid data loss it is important to execute the above individual variables section before creating proceeding to write the score_data and parts_data.

from music21 import meter, key, tempo, clef, instrument
from ai_song_maker import score_helper
# Construct score_data
score_data = {
    'song_structure': song_structure 
    'key': key.Key('C', 'Major'),  # C major on music21
    'time_signiture': meter.TimeSignature('4/4'),  # 4/4 Time
    'tempo': tempo.MetronomeMark(number=120),  # 120 BPM
    'clef': clef.TrebleClef(),  # music 21 clef, can be overridden in parts_data
}