======================== unified (from filesystem) ========================
                                         'bitrate'  '317.478'
                                        'duration'  '260'
                                          'artist'  'Dødheimsgard'
                                     'text_people'  ''
                                         'release'  'Supervillain Outcast'
                                           'title'  'The Vile Delinquents'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-4', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['industrial metal', 'black metal', 'avant garde', 'experimental', 'avant "
 "garde metal']")
                                     'discogstags'  "['black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '104.822'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Supervillain Outcast'
'TBPM' (BPM (beats per minute))                     '104.822'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'The Vile Delinquents'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dødheimsgard'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['black metal', 'rock']
'TXXX:lastfmtags'                                   ['industrial metal',
 'black metal',
 'avant garde',
 'experimental',
 'avant garde metal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'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'                        '-1.37 dB'
'TXXX:replaygain_track_peak'                        '0.397588'

========================== row from database ==========================
                                              'id'  1397827
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Dødheimsgard - Dodheimsgard/07 - The Vile Delinquents.mp3
                                         'working'  None
                                         'bitrate'  317
                                    'duration_sec'  260
                                           'genre'  eid-metal
                                        'filesize'  10335760
                                           'mtime'  1620300619
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Dodheimsgard 07 eid metal
                                      'tag_artist'  Dødheimsgard
                                     'tag_release'  Supervillain Outcast
                                       'tag_title'  The Vile Delinquents
                                             'bpm'  104.822
                                    'search_title'  'delinquents':3 'the':1 'vile':2
                                   'search_artist'  'dodheimsgard':2 'dødheimsgard':1
                                  'search_release'  'outcast':2 'supervillain':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'dodheimsgard':3 'eid':4 'metal':5
                                    'search_combo'  '00dwimp':8 '00metal':9 'delinquents':3A 'dodheimsgard':5B,10 'dødheimsgard':4B 'eid':11 'metal':12 'outcast':7C 'supervillain':6C 'the':1A 'vile':2A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-1', 'q-grit-4']
                                      'lastfmtags'  ['industrial metal', 'black metal', 'avant garde', 'experimental', 'avant garde metal']
                                        'tag_date'  2007
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620300619.281516  (2021-05-06 13:30:19)
                             'size'  10335760