======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '306'
                                          'artist'  'The Commodores'
                                     'text_people'  ''
                                         'release'  'The Best of The Commodores (20th Century Masters)'
                                           'title'  'Nightshift'
                                           'quals'  ("['Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['soul', 'funk', '70s', 'motown', '7soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'set-pl-billboard'
                                             'bpm'  '139.466'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Best of The Commodores (20th Century Masters)'
'TBPM' (BPM (beats per minute))                     '139.466'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-billboard'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Nightshift'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Commodores'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soul', 'funk', '70s', 'motown', '7soul']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.83 dB'
'TXXX:replaygain_track_peak'                        '0.540302'

========================== row from database ==========================
                                              'id'  1320323
                                            'path'  /data/Music/Bulk/00poprockelectronic/1985 complete/020-B Commodores - Nightshift (album version).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  306
                                           'genre'  set-pl-billboard
                                        'filesize'  12283777
                                           'mtime'  1652397856
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1985 complete 020 (album version) set pl billboard
                                      'tag_artist'  The Commodores
                                     'tag_release'  The Best of The Commodores (20th Century Masters)
                                       'tag_title'  Nightshift
                                             'bpm'  139.466
                                    'search_title'  'nightshift':1
                                   'search_artist'  'commodores':2 'the':1
                                  'search_release'  '20th':5,6 'best':2 'century':7 'commodores':4 'masters':8,9 'of':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 '1985':2 'album':4,5 'billboard':10 'complete':3 'pl':9 'set':8 'version':6,7
                                    'search_combo'  '00poprockelectronic':13 '1985':14 '20th':8C,9C 'album':16,17 'best':5C 'billboard':22 'century':10C 'commodores':3B,7C 'complete':15 'masters':11C,12C 'nightshift':1A 'of':6C 'pl':21 'set':20 'the':2B,4C 'version':18,19
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['soul', 'funk', '70s', 'motown', '7soul']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397856.475749  (2022-05-13 01:24:16)
                             'size'  12283777