======================== unified (from filesystem) ========================
                                         'bitrate'  '259.888'
                                        'duration'  '237'
                                          'artist'  'In Flames'
                                     'text_people'  ''
                                         'release'  'Colony-Deluxe Edition'
                                           'title'  "Behind Space '99"
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swedish', 'death metal', 'melodic death metal', 'metal', 'swedish metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '133.579'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Colony-Deluxe Edition'
'TBPM' (BPM (beats per minute))                     '133.579'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         "Behind Space '99"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'In Flames'
'TRCK' (Track number/Position in set)               '9'
'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', 'metal', 'swedish metal']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.58 dB'
'TXXX:replaygain_track_peak'                        '0.352119'

========================== row from database ==========================
                                              'id'  1402363
                                            'path'  /data/Music/Bulk/00dwimp/00metal/In Flames/Colony/09-in_flames-behind_space_99-end.mp3
                                         'working'  None
                                         'bitrate'  259
                                    'duration_sec'  237
                                           'genre'  eid-metal-death
                                        'filesize'  7730244
                                           'mtime'  1620301982
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 09 in_flames behind_space_99 end eid metal death
                                      'tag_artist'  In Flames
                                     'tag_release'  Colony-Deluxe Edition
                                       'tag_title'  Behind Space '99
                                             'bpm'  133.579
                                    'search_title'  '99':3,4 'behind':1 'space':2
                                   'search_artist'  'flames':2 'in':1
                                  'search_release'  'colony':1 'colonydeluxe':3 'deluxe':2 'edition':4
                                     'search_rest'  '00dwimp':1 '00metal':2 '99':7 'behind':5 'death':11 'eid':9 'end':8 'flames':4 'in':3 'metal':10 'space':6
                                    'search_combo'  '00dwimp':11 '00metal':12 '99':3A,4A,17 'behind':1A,15 'colony':7C 'colonydeluxe':9C 'death':21 'deluxe':8C 'edition':10C 'eid':19 'end':18 'flames':6B,14 'in':5B,13 'metal':20 'space':2A,16
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-1', 'q-bass-2', 'q-grit-4']
                                      'lastfmtags'  ['swedish', 'death metal', 'melodic death metal', 'metal', 'swedish metal']
                                        'tag_date'  2004
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620301981.9222684  (2021-05-06 13:53:01)
                             'size'  7730244