======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '253'
                                          'artist'  'Volbeat'
                                     'text_people'  ''
                                         'release'  'The Strength/The Sound/The Songs'
                                           'title'  'Caroline #1'
                                           '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-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['danish', 'metal', 'elvis metal', 'rockabilly', 'heavy metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-metal-heavy'
                                             'bpm'  '143.823'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000019E1 00000000 000052B9'
'COMM:iTunNORM:eng'                                 (' 000019E1 00000000 000052B9 00000000 0002983E 00000000 000077B8 00000000 '
 '0002E65E 00000000')
'TALB' (Album/Movie/Show title)                     'The Strength/The Sound/The Songs'
'TBPM' (BPM (beats per minute))                     '143.823'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-heavy'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Caroline #1'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Volbeat'
'TRCK' (Track number/Position in set)               '11'
'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'                                   ['danish', 'metal', 'elvis metal', 'rockabilly', 'heavy metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.19 dB'
'TXXX:replaygain_track_peak'                        '0.383738'

========================== row from database ==========================
                                              'id'  1396716
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Volbeat/[2005] The Strength The Sound The Songs/11 Caroline #1.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  253
                                           'genre'  eid-metal-heavy
                                        'filesize'  4084309
                                           'mtime'  1620311067
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal [2005] 11 eid metal heavy
                                      'tag_artist'  Volbeat
                                     'tag_release'  The Strength/The Sound/The Songs
                                       'tag_title'  Caroline #1
                                             'bpm'  143.823
                                    'search_title'  '1':2,3 'caroline':1
                                   'search_artist'  'volbeat':1
                                  'search_release'  'songs':8 'sound':5 'soundthe':7 'strength':2 'strengththe':4 'the':1,3,6
                                     'search_rest'  '00dwimp':1 '00metal':2 '2005':3,4 'eid':5 'heavy':7 'metal':6
                                    'search_combo'  '00dwimp':13 '00metal':14 '1':2A,3A '2005':15,16 'caroline':1A 'eid':17 'heavy':19 'metal':18 'songs':12C 'sound':9C 'soundthe':11C 'strength':6C 'strengththe':8C 'the':5C,7C,10C 'volbeat':4B
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  7A
                                           '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-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['danish', 'metal', 'elvis metal', 'rockabilly', 'heavy metal']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311067.4593508  (2021-05-06 16:24:27)
                             'size'  4084309