======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '141'
                                          'artist'  'Valentin Clastrier'
                                     'text_people'  ''
                                         'release'  'Vielle À Roue - Hurdy-Gurdy'
                                           'title'  'Petite Musique De Chanvre'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folklore imaginaire', 'jazz', 'hurdy gurdy', 'french', 'modern creative']"
                                     'discogstags'  "['folk, world, & country', 'contemporary', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '22'
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '138.4'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'COMM:iTunNORM:eng'                                 (' 00000052 00000048 0000035B 00000303 00016FF5 00016FF5 000024A5 00002213 '
 '0001D100 0001D100')
'COMM:iTunes_CDDB_IDs:eng'                          '22+5564B3AC60259BC3C8773F5127548E36+752048'
'TALB' (Album/Movie/Show title)                     'Vielle À Roue - Hurdy-Gurdy'
'TBPM' (BPM (beats per minute))                     '138.4'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '1987'
'TENC' (Encoded by)                                 'iTunes v4.2.0.72'
'TIT2' (Title/songname/content description)         'Petite Musique De Chanvre'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Valentin Clastrier'
'TRCK' (Track number/Position in set)               '5/22'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk, world, & country', 'contemporary', 'classical']
'TXXX:lastfmtags'                                   ['folklore imaginaire', 'jazz', 'hurdy gurdy', 'french', 'modern creative']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.05 dB'
'TXXX:replaygain_track_peak'                        '0.563825'

========================== row from database ==========================
                                              'id'  1238724
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/valentin clastrier - vielle À roue/05 petite musique de chanvre.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  141
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  3393951
                                           'mtime'  1621630308
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos valentin clastrier vielle roue 05 petite musique de chanvre ifs songwriter folk
                                      'tag_artist'  Valentin Clastrier
                                     'tag_release'  Vielle À Roue - Hurdy-Gurdy
                                       'tag_title'  Petite Musique De Chanvre
                                             'bpm'  138.4
                                    'search_title'  'chanvre':4 'de':3 'musique':2 'petite':1
                                   'search_artist'  'clastrier':2 'valentin':1
                                  'search_release'  'a':2,3 'gurdy':6 'hurdy':5 'hurdygurdy':7 'roue':4 'vielle':1
                                     'search_rest'  '00singer':1 'chanvre':11 'clastrier':5 'de':10 'eos':3 'folk':13 'ifs':12 'musique':9 'petite':8 'roue':7 'songwriter':2 'valentin':4 'vielle':6
                                    'search_combo'  '00singer':14 'a':8C,9C 'chanvre':4A,24 'clastrier':6B,18 'de':3A,23 'eos':16 'folk':26 'gurdy':12C 'hurdy':11C 'hurdygurdy':13C 'ifs':25 'musique':2A,22 'petite':1A,21 'roue':10C,20 'songwriter':15 'valentin':5B,17 'vielle':7C,19
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['folklore imaginaire', 'jazz', 'hurdy gurdy', 'french', 'modern creative']
                                        'tag_date'  1987
                                     'discogstags'  ['folk, world, & country', 'contemporary', 'classical']

============================== file details ==============================
                                           'mtime'  1621630307.997526  (2021-05-21 22:51:47)
                             'size'  3393951