======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '278'
                                          'artist'  'Amon Amarth'
                                     'text_people'  ''
                                         'release'  'Versus The World (Bonus Cd)'
                                           'title'  'Arrival Of The Fimbul Winter (Demo)'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-4', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swedish', 'death metal', 'melodic death metal', 'viking metal', 'metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '14'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '125.238'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Versus The World (Bonus Cd)'
'TBPM' (BPM (beats per minute))                     '125.238'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Arrival Of The Fimbul Winter (Demo)'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Amon Amarth'
'TRCK' (Track number/Position in set)               '8/14'
'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'                                   ['swedish', 'death metal', 'melodic death metal', 'viking metal', 'metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.67 dB'
'TXXX:replaygain_track_peak'                        '0.373565'

========================== row from database ==========================
                                              'id'  1392967
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Amon Amarth/Versus The World bonus disk/08-Arrival Of The Fimbul Winter (Demo).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  278
                                           'genre'  eid-metal-death
                                        'filesize'  4456238
                                           'mtime'  1620301838
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal bonus disk 08 eid metal death
                                      'tag_artist'  Amon Amarth
                                     'tag_release'  Versus The World (Bonus Cd)
                                       'tag_title'  Arrival Of The Fimbul Winter (Demo)
                                             'bpm'  125.238
                                    'search_title'  'arrival':1 'demo':6,7 'fimbul':4 'of':2 'the':3 'winter':5
                                   'search_artist'  'amarth':2 'amon':1
                                  'search_release'  'bonus':4,5 'cd':6,7 'the':2 'versus':1 'world':3
                                     'search_rest'  '00dwimp':1 '00metal':2 'bonus':3 'death':7 'disk':4 'eid':5 'metal':6
                                    'search_combo'  '00dwimp':17 '00metal':18 'amarth':9B 'amon':8B 'arrival':1A 'bonus':13C,14C,19 'cd':15C,16C 'death':23 'demo':6A,7A 'disk':20 'eid':21 'fimbul':4A 'metal':22 'of':2A 'the':3A,11C 'versus':10C 'winter':5A 'world':12C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['swedish', 'death metal', 'melodic death metal', 'viking metal', 'metal']
                                        'tag_date'  2002
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620301838.028003  (2021-05-06 13:50:38)
                             'size'  4456238