======================== unified (from filesystem) ========================
                                         'bitrate'  '204.351'
                                        'duration'  '223'
                                          'artist'  'Friendly Fires'
                                     'text_people'  'Friendly Fires'
                                         'release'  'Friendly Fires'
                                           'title'  'On Board'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
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 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'indietronica', 'new rave', 'british', 'dance', 'electronic']"
                                     'discogstags'  "['electronic', 'rock', 'new wave']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '128.3'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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'TALB' (Album/Movie/Show title)                     'Friendly Fires'
'TBPM' (BPM (beats per minute))                     '128.3'
'TCOM' (Composer)                                   'Friendly Fires'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2008-09-01'
'TIT2' (Title/songname/content description)         'On Board'
'TKEY' (Initial key)                                '10A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Friendly Fires'
'TPE2' (Band/orchestra/accompaniment)               'Friendly Fires'
'TPUB' (Publisher)                                  'XL'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Release type'                                 'Advance'
'TXXX:Rip date'                                     '2008-07-31'
'TXXX:Source'                                       'CD (LP)'
'TXXX:discogstags'                                  ['electronic', 'rock', 'new wave']
'TXXX:lastfmtags'                                   ['indie', 'indietronica', 'new rave', 'british', 'dance', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.89 dB'
'TXXX:replaygain_track_peak'                        '0.423198'

========================== row from database ==========================
                                              'id'  1264370
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Friendly Fires/Friendly Fires/06-friendly_fires-on_board.mp3
                                         'working'  None
                                         'bitrate'  204
                                    'duration_sec'  223
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  5701197
                                           'mtime'  1621696899
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 06 friendly_fires on_board ifs songwriter indie unsorted
                                      'tag_artist'  Friendly Fires
                                     'tag_release'  Friendly Fires
                                       'tag_title'  On Board
                                             'bpm'  128.3
                                    'search_title'  'board':2 'on':1
                                   'search_artist'  'fires':2 'friendly':1
                                  'search_release'  'fires':2 'friendly':1
                                     'search_rest'  '00singer':1 'board':7 'eos':3 'fires':5 'friendly':4 'ifs':8 'indie':9 'on':6 'songwriter':2 'unsorted':10
                                    'search_combo'  '00singer':7 'board':2A,13 'eos':9 'fires':4B,6C,11 'friendly':3B,5C,10 'ifs':14 'indie':15 'on':1A,12 'songwriter':8 'unsorted':16
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indietronica', 'new rave', 'british', 'dance', 'electronic']
                                        'tag_date'  2008
                                     'discogstags'  ['electronic', 'rock', 'new wave']

============================== file details ==============================
                                           'mtime'  1621696899.1557806  (2021-05-22 17:21:39)
                             'size'  5701197