======================== unified (from filesystem) ========================
                                         'bitrate'  '175.838'
                                        'duration'  '206'
                                          'artist'  'Les Fragments de la Nuit'
                                     'text_people'  ''
                                         'release'  'Musique du Cripuscule'
                                           'title'  'La Chambre des Fies'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dark ambient', 'neoclassical', 'french', 'classical', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '16'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '142.910'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Musique du Cripuscule'
'TBPM' (BPM (beats per minute))                     '142.910'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '2008-06'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'La Chambre des Fies'
'TKEY' (Initial key)                                '8B'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Les Fragments de la Nuit'
'TPUB' (Publisher)                                  'Equilibrium Music'
'TRCK' (Track number/Position in set)               '9/16'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 3.97'
'TXXX:Catalog #'                                    'EQM022'
'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:Release type'                                 'Album'
'TXXX:Rip date'                                     '2008-06-25'
'TXXX:Ripping tool'                                 'EAC'
'TXXX:Source'                                       'CD'
'TXXX:lastfmtags'                                   ['dark ambient', 'neoclassical', 'french', 'classical', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.52 dB'
'TXXX:replaygain_track_peak'                        '0.547535'

========================== row from database ==========================
                                              'id'  1303956
                                            'path'  /data/Music/Bulk/00instruments-classical/Les Fragments de la Nuit - musique du crépuscule/09-les_fragments_de_la_nuit-la_chambre_des_fees-gw.mp3
                                         'working'  None
                                         'bitrate'  175
                                    'duration_sec'  206
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  4533731
                                           'mtime'  1620561607
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical musique crépuscule 09 les_fragments_de_la_nuit la_chambre_des_fees gw prerock classical or classical instruments
                                      'tag_artist'  Les Fragments de la Nuit
                                     'tag_release'  Musique du Cripuscule
                                       'tag_title'  La Chambre des Fies
                                             'bpm'  142.91
                                    'search_title'  'chambre':2 'des':3 'fies':4 'la':1
                                   'search_artist'  'de':3 'fragments':2 'la':4 'les':1 'nuit':5
                                  'search_release'  'cripuscule':3 'du':2 'musique':1
                                     'search_rest'  '00instruments':1 'chambre':12 'classical':2 'crepuscule':4,5 'de':8 'des':13 'fees':14 'fragments':7 'gw':15 'instruments':18 'la':9,11 'les':6 'musique':3 'nuit':10 'or':17 'prerock':16
                                    'search_combo'  '00instruments':13 'chambre':2A,24 'classical':14 'crepuscule':16,17 'cripuscule':12C 'de':7B,20 'des':3A,25 'du':11C 'fees':26 'fies':4A 'fragments':6B,19 'gw':27 'instruments':30 'la':1A,8B,21,23 'les':5B,18 'musique':10C,15 'nuit':9B,22 'or':29 'prerock':28
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['dark ambient', 'neoclassical', 'french', 'classical', 'ambient']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561606.7730346  (2021-05-09 14:00:06)
                             'size'  4533731