======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '179'
                                          'artist'  'Serge Gainsbourg'
                                     'text_people'  ''
                                         'release'  'Les Annees Psychedeliques (1967-1971) (Smoke Disque 2005)'
                                           'title'  "Je n'avais qu'un seul mot a lui dire"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['chanson', 'chanson francaise', 'pop', 'french', 'french pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '124.9'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00001C7C 00001BC5 000115A5 00010CA9 0000245F 0000245F 00008000 00008000 '
 '00000B9C 00019BF9')
'TALB' (Album/Movie/Show title)                     'Les Annees Psychedeliques (1967-1971) (Smoke Disque 2005)'
'TBPM' (BPM (beats per minute))                     '124.9'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         "Je n'avais qu'un seul mot a lui dire"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Serge Gainsbourg'
'TXXX:MUTANGIBLE'                                   'http://holywarbles.blogspot.com'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['chanson', 'chanson francaise', 'pop', 'french', 'french pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.10 dB'
'TXXX:replaygain_track_peak'                        '0.301188'

========================== row from database ==========================
                                              'id'  1510002
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Les Annees Psychedeliques (1967-1971) (Smoke Disque 2005)/Je n_avais qu_un seul mot a lui dire.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  179
                                           'genre'  rock-unsorted
                                        'filesize'  7195233
                                           'mtime'  1621489349
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm n_avais qu_un rock unsorted
                                      'tag_artist'  Serge Gainsbourg
                                     'tag_release'  Les Annees Psychedeliques (1967-1971) (Smoke Disque 2005)
                                       'tag_title'  Je n'avais qu'un seul mot a lui dire
                                             'bpm'  124.9
                                    'search_title'  'a':10 'avais':3 'dire':12 'je':1 'lui':11 'mot':9 'n':2 'navais':4 'qu':5 'quun':7 'seul':8 'un':6
                                   'search_artist'  'gainsbourg':2 'serge':1
                                  'search_release'  '1967':4 '19671971':6 '1971':5 '2005':10,11 'annees':2 'disque':9 'les':1 'psychedeliques':3 'smoke':7,8
                                     'search_rest'  'avais':2 'n':1 'qu':3 'rock':5 'un':4 'unsorted':6
                                    'search_combo'  '1967':18C '19671971':20C '1971':19C '2005':24C,25C 'a':10A 'annees':16C 'avais':3A,27 'dire':12A 'disque':23C 'gainsbourg':14B 'je':1A 'les':15C 'lui':11A 'mot':9A 'n':2A,26 'navais':4A 'psychedeliques':17C 'qu':5A,28 'quun':7A 'rock':30 'serge':13B 'seul':8A 'smoke':21C,22C 'un':6A,29 'unsorted':31
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['chanson', 'chanson francaise', 'pop', 'french', 'french pop']
                                        'tag_date'  1969
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621489348.9418283  (2021-05-20 07:42:28)
                             'size'  7195233