CAD-Piano data sonification

piano.py

import partitura.score as score
import partitura
import pandas as pd

part = score.Part('P0', 'Piano', quarter_duration=1250)
source =pd.read_csv('../data/gitdiff.csv')

first_song = source[source['data']=='2005-03-07']
len_song = first_song.shape[0]
half_len = int(len_song/2)

left_hand =  first_song.iloc[:half_len, :].values
right_hand = first_song.iloc[half_len:, :].values

map_notes_left = { 
    0: {'step':'C', 'octave':4},1:{'step':'D', 'octave':4}, 2:{'step':'E', 'octave':4}, 3:{'step':'F', 'octave':4},
    4:{'step':'G', 'octave':4}, 5:{'step':'A', 'octave':4}, 6:{'step':'B', 'octave':4}, 7:{'step':'C', 'octave':5},
    8:{'step':'E', 'octave':5}, 9:{'step':'E', 'octave':5}, 10:{'step':'F', 'octave':5}, 11:{'step':'G', 'octave':5},
    12:{'step':'A', 'octave':5}, 13:{'step':'B', 'octave':5}
    }

map_notes_right = { 
    0: {'step':'C', 'octave':6}, 1:{'step':'D', 'octave':6}, 2:{'step':'E', 'octave':6}, 3:{'step':'F', 'octave':6},
    4:{'step':'G', 'octave':6}, 5:{'step':'A', 'octave':6}, 6:{'step':'B', 'octave':6}, 7:{'step':'C', 'octave':7},
    8:{'step':'E', 'octave':7}, 9:{'step':'E', 'octave':7}, 10:{'step':'F', 'octave':7}, 11:{'step':'G', 'octave':7},
    12:{'step':'A', 'octave':7}, 13:{'step':'B', 'octave':7}
    }

part.add(score.TimeSignature(4, 4), start=0)
start_left = 0
end_left = 0

start_right = 0
end_right = 0

for left in left_hand:    
    real_note_left = int(left[3]) % 14
    mapping_left = map_notes_left[real_note_left]
    end_left = end_left + left[4]
    part.add(score.Note(id='n0', step=mapping_left['step'], octave=mapping_left['octave'], voice=1), start=start_left, end=end_left)
    start_left = end_left

for right in right_hand:    
    real_note_right = int(right[3]) % 14
    mapping_right = map_notes_right[real_note_right]
    end_right = end_right + right[4]
    part.add(score.Note(id='n0', step=mapping_right['step'], octave=mapping_right['octave'], voice=2), start=start_right, end=end_right)
    start_right = end_right

partitura.save_score_midi(part, '../sounds/cad-piano.mid')