======================== unified (from filesystem) ========================
                                         'bitrate'  '204.853'
                                        'duration'  '234'
                                          'artist'  'Finntroll'
                                     'text_people'  ''
                                         'release'  'Nattfodd'
                                           'title'  'Det Iskalla Trollblod'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk metal', 'black metal', 'viking metal', 'metal', 'finnish']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-metal-black'
                                             'bpm'  '145.685'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Nattfodd'
'TBPM' (BPM (beats per minute))                     '145.685'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-black'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Det Iskalla Trollblod'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Finntroll'
'TRCK' (Track number/Position in set)               '8'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['folk metal', 'black metal', 'viking metal', 'metal', 'finnish']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.23 dB'
'TXXX:replaygain_track_peak'                        '0.508118'

========================== row from database ==========================
                                              'id'  1400014
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Finntroll/Nattfodd/Finntroll - 08 - Det Iskalla Trollblod.mp3
                                         'working'  None
                                         'bitrate'  204
                                    'duration_sec'  234
                                           'genre'  eid-metal-black
                                        'filesize'  6010349
                                           'mtime'  1620301694
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 08 eid metal black
                                      'tag_artist'  Finntroll
                                     'tag_release'  Nattfodd
                                       'tag_title'  Det Iskalla Trollblod
                                             'bpm'  145.685
                                    'search_title'  'det':1 'iskalla':2 'trollblod':3
                                   'search_artist'  'finntroll':1
                                  'search_release'  'nattfodd':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'black':5 'eid':3 'metal':4
                                    'search_combo'  '00dwimp':6 '00metal':7 'black':10 'det':1A 'eid':8 'finntroll':4B 'iskalla':2A 'metal':9 'nattfodd':5C 'trollblod':3A
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['folk metal', 'black metal', 'viking metal', 'metal', 'finnish']
                                        'tag_date'  2004
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620301694.0550673  (2021-05-06 13:48:14)
                             'size'  6010349