======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '197'
                                          'artist'  'Violent Femmes'
                                     'text_people'  ''
                                         'release'  'Add It Up (1981-1993)'
                                           'title'  'Dance, Motherfucker, Dance!'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
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 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['80s', 'indie', 'alternative', 'alternative rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '129.564'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Add It Up (1981-1993)'
'TBPM' (BPM (beats per minute))                     '129.564'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '1993'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Dance, Motherfucker, Dance!'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Violent Femmes'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Warner Bros.'
'TRCK' (Track number/Position in set)               '16'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['80s', 'indie', 'alternative', 'alternative rock', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.50 dB'
'TXXX:replaygain_track_peak'                        '0.479029'

========================== row from database ==========================
                                              'id'  1274950
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Violent Femmes/Add It Up/16 dance, motherfucker, dance!.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  197
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  3948862
                                           'mtime'  1638554839
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 16 dance, motherfucker, dance! ifs songwriter indie rock
                                      'tag_artist'  Violent Femmes
                                     'tag_release'  Add It Up (1981-1993)
                                       'tag_title'  Dance, Motherfucker, Dance!
                                             'bpm'  129.564
                                    'search_title'  'dance':1,2 'motherfucker':3,4
                                   'search_artist'  'femmes':2 'violent':1
                                  'search_release'  '1981':4 '19811993':6 '1993':5 'add':1 'it':2 'up':3
                                     'search_rest'  '00singer':1 'dance':4,5 'eos':3 'ifs':8 'indie':9 'motherfucker':6,7 'rock':10 'songwriter':2
                                    'search_combo'  '00singer':13 '1981':10C '19811993':12C '1993':11C 'add':7C 'dance':1A,2A,16,17 'eos':15 'femmes':6B 'ifs':20 'indie':21 'it':8C 'motherfucker':3A,4A,18,19 'rock':22 'songwriter':14 'up':9C 'violent':5B
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'indie', 'alternative', 'alternative rock', 'rock']
                                        'tag_date'  1993
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1638554839.1443212  (2021-12-03 19:07:19)
                             'size'  3948862