======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '231'
                                          'artist'  'Sissel Kyrkjebø'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Prince Igor'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-4', "
 "'q-other-1', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-3']")
                                      'lastfmtags'  "['pop', 'norwegian', 'female vocalists', 'classical', 'singing sensation']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '16'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '84.1'
                                             'key'  '8A'
                                        'acoustid'  'c8f0ddd2-4aa3-49c7-8a04-d91a77c66987'
rest: ''

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

'TBPM' (BPM (beats per minute))                     '84.1'
'TIT2' (Title/songname/content description)         'Prince Igor'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sissel Kyrkjebø'
'TPE2' (Band/orchestra/accompaniment)               'Sissel Kyrkjebø'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '14/16'
'TSO2'                                              'Kyrkjebø, Sissel'
'TSOP' (Performer sort order)                       'Kyrkjebø, Sissel'
'TXXX:Acoustid Id'                                  'c8f0ddd2-4aa3-49c7-8a04-d91a77c66987'
'TXXX:Artists'                                      'Sissel Kyrkjebø'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['pop', 'norwegian', 'female vocalists', 'classical', 'singing sensation']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.67 dB'
'TXXX:replaygain_track_peak'                        '0.702278'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'cc1acc88-5f06-4da0-8539-1eccdff2a149')

========================== row from database ==========================
                                              'id'  1312287
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Rapsody featuring Warren G and Sissel - Prince Igor.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  231
                                           'genre'  
                                        'filesize'  3710894
                                           'mtime'  1652397975
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Rapsody featuring Warren G and
                                      'tag_artist'  Sissel Kyrkjebø
                                     'tag_release'  None
                                       'tag_title'  Prince Igor
                                             'bpm'  84.1
                                    'search_title'  'igor':2 'prince':1
                                   'search_artist'  'kyrkjebo':3 'kyrkjebø':2 'sissel':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'and':11 'featuring':8 'files':5,6 'g':10 'loose':3,4 'rapsody':7 'unsorted':2 'warren':9
                                    'search_combo'  '00poprockelectronic':6 'and':16 'featuring':13 'files':10,11 'g':15 'igor':2A 'kyrkjebo':5B 'kyrkjebø':4B 'loose':8,9 'prince':1A 'rapsody':12 'sissel':3B 'unsorted':7 'warren':14
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-3']
                                      'lastfmtags'  ['pop', 'norwegian', 'female vocalists', 'classical', 'singing sensation']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397975.3572743  (2022-05-13 01:26:15)
                             'size'  3710894