======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '196'
                                          'artist'  'Linea 77'
                                     'text_people'  ''
                                         'release'  'Too Much Happiness Makes Kids Paranoid'
                                           'title'  '90'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rapcore', 'metal', 'crossover', 'alternative', 'nu metal', 'italian']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '87.032'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Too Much Happiness Makes Kids Paranoid'
'TBPM' (BPM (beats per minute))                     '87.032'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         '90'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Linea 77'
'TPE2' (Band/orchestra/accompaniment)               'Linea 77'
'TPUB' (Publisher)                                  'Earache'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['rapcore', 'metal', 'crossover', 'alternative', 'nu metal', 'italian']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'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'                        '-1.36 dB'
'TXXX:replaygain_track_peak'                        '0.412658'

========================== row from database ==========================
                                              'id'  1308344
                                            'path'  /data/Music/Bulk/00poprockelectronic/Linea 77/Too Much Happiness Makes Kids Paranoid/Linea 77 - 90.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  196
                                           'genre'  eid-metal-nu
                                        'filesize'  3153512
                                           'mtime'  1620311142
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic eid metal nu
                                      'tag_artist'  Linea 77
                                     'tag_release'  Too Much Happiness Makes Kids Paranoid
                                       'tag_title'  90
                                             'bpm'  87.032
                                    'search_title'  '90':1
                                   'search_artist'  '77':2 'linea':1
                                  'search_release'  'happiness':3 'kids':5 'makes':4 'much':2 'paranoid':6 'too':1
                                     'search_rest'  '00poprockelectronic':1 'eid':2 'metal':3 'nu':4
                                    'search_combo'  '00poprockelectronic':10 '77':3B '90':1A 'eid':11 'happiness':6C 'kids':8C 'linea':2B 'makes':7C 'metal':12 'much':5C 'nu':13 'paranoid':9C 'too':4C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['rapcore', 'metal', 'crossover', 'alternative', 'nu metal', 'italian']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311141.835153  (2021-05-06 16:25:41)
                             'size'  3153512