======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '160'
                                          'artist'  'Serge Gainsbourg'
                                     'text_people'  'Serge Gainsbourg'
                                         'release'  'Les Annees Psychedeliques (1967-1971) (Smoke Disque 2005)'
                                           'title'  'Chanson du Forcat'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['chanson', 'chanson francaise', 'pop', 'french', 'french pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '113.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Les Annees Psychedeliques (1967-1971) (Smoke Disque 2005)'
'TBPM' (BPM (beats per minute))                     '113.9'
'TCOM' (Composer)                                   'Serge Gainsbourg'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Chanson du Forcat'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Serge Gainsbourg'
'TPE2' (Band/orchestra/accompaniment)               'Serge Gainsbourg'
'TPUB' (Publisher)                                  'PolyGram'
'TRCK' (Track number/Position in set)               '1'
'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'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.59 dB'
'TXXX:replaygain_track_peak'                        '0.360958'

========================== row from database ==========================
                                              'id'  725991
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Les Annees Psychedeliques (1967-1971) (Smoke Disque 2005)/01 Chanson du Forcat.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  160
                                           'genre'  ifs-songwriter
                                        'filesize'  6418874
                                           'mtime'  1621489352
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 01 ifs songwriter
                                      'tag_artist'  Serge Gainsbourg
                                     'tag_release'  Les Annees Psychedeliques (1967-1971) (Smoke Disque 2005)
                                       'tag_title'  Chanson du Forcat
                                             'bpm'  113.9
                                    'search_title'  'chanson':1 'du':2 'forcat':3
                                   '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'  'ifs':1 'songwriter':2
                                    'search_combo'  '1967':9C '19671971':11C '1971':10C '2005':15C,16C 'annees':7C 'chanson':1A 'disque':14C 'du':2A 'forcat':3A 'gainsbourg':5B 'ifs':17 'les':6C 'psychedeliques':8C 'serge':4B 'smoke':12C,13C 'songwriter':18
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['chanson', 'chanson francaise', 'pop', 'french', 'french pop']
                                        'tag_date'  1969
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621489352.321141  (2021-05-20 07:42:32)
                             'size'  6418874