======================== unified (from filesystem) ========================
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                                        'duration'  '165'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '13'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '125.393'
                                             'key'  '10A'
                                        'acoustid'  '41fd540b-9df0-4aef-b755-6f8dcaf2411e'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Little Bits of Insanity'
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'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1998'
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'TIT2' (Title/songname/content description)         'Hearse Driver'
'TKEY' (Initial key)                                '10A'
'TLAN' (Language(s))                                'English'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Os Catalépticos'
'TPE2' (Band/orchestra/accompaniment)               'Os Catalépticos'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Fury Records'
'TRCK' (Track number/Position in set)               '8/13'
'TSO2'                                              'Catalépticos, Os'
'TSOP' (Performer sort order)                       'Catalépticos, Os'
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'TXXX:Acoustid Id'                                  '41fd540b-9df0-4aef-b755-6f8dcaf2411e'
'TXXX:Artists'                                      'Os Catalépticos'
'TXXX:BARCODE'                                      '5018901305426'
'TXXX:CATALOGNUMBER'                                'FCD 3054'
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'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['psychobilly', 'power psychobilly', 'brazilian', 'rockabilly', 'psycho']
'TXXX:originalyear'                                 '1998'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.17 dB'
'TXXX:replaygain_track_peak'                        '0.367123'
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========================== row from database ==========================
                                              'id'  1357908
                                            'path'  /data/Music/Bulk/00poprockelectronic/musica/Os Catalepticos/little bits of insanity/08 - Hearse Driver.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  165
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  6674899
                                           'mtime'  1620526631
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic musica Catalepticos little bits insanity 08 rock rockabilly or psychobilly
                                      'tag_artist'  Os Catalépticos
                                     'tag_release'  Little Bits of Insanity
                                       'tag_title'  Hearse Driver
                                             'bpm'  125.393
                                    'search_title'  'driver':2 'hearse':1
                                   'search_artist'  'catalepticos':2,3 'os':1
                                  'search_release'  'bits':2 'insanity':4 'little':1 'of':3
                                     'search_rest'  '00poprockelectronic':1 'bits':5 'catalepticos':3 'insanity':6 'little':4 'musica':2 'or':9 'psychobilly':10 'rock':7 'rockabilly':8
                                    'search_combo'  '00poprockelectronic':10 'bits':7C,14 'catalepticos':4B,5B,12 'driver':2A 'hearse':1A 'insanity':9C,15 'little':6C,13 'musica':11 'of':8C 'or':18 'os':3B 'psychobilly':19 'rock':16 'rockabilly':17
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['psychobilly', 'power psychobilly', 'brazilian', 'rockabilly', 'psycho']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526631.2583137  (2021-05-09 04:17:11)
                             'size'  6674899