======================== unified (from filesystem) ========================
                                         'bitrate'  '209.214'
                                        'duration'  '284'
                                          'artist'  'Volbeat'
                                     'text_people'  ''
                                         'release'  'Guitar Gangsters And Cadillac Blood'
                                           'title'  'A Broken Man And The Dawn'
                                           '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-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['danish', 'metal', 'elvis metal', 'rockabilly', 'heavy metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'eid-metal-heavy'
                                             'bpm'  '144.028'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000028D7 00000000 00006ACE'
'COMM:iTunNORM:eng'                                 (' 000028D7 00000000 00006ACE 00000000 000356DE 00000000 00008000 00000000 '
 '00009236 00000000')
'TALB' (Album/Movie/Show title)                     'Guitar Gangsters And Cadillac Blood'
'TBPM' (BPM (beats per minute))                     '144.028'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-heavy'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'A Broken Man And The Dawn'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Volbeat'
'TRCK' (Track number/Position in set)               '12'
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.54 dB'
'TXXX:replaygain_track_peak'                        '0.299553'

========================== row from database ==========================
                                              'id'  1400143
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Volbeat/[2008] Guitar Gangsters And Cadillac Blood/12 A Broken Man And The Dawn.mp3
                                         'working'  None
                                         'bitrate'  209
                                    'duration_sec'  284
                                           'genre'  eid-metal-heavy
                                        'filesize'  7545935
                                           'mtime'  1620311073
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal [2008] 12 eid metal heavy
                                      'tag_artist'  Volbeat
                                     'tag_release'  Guitar Gangsters And Cadillac Blood
                                       'tag_title'  A Broken Man And The Dawn
                                             'bpm'  144.028
                                    'search_title'  'a':1 'and':4 'broken':2 'dawn':6 'man':3 'the':5
                                   'search_artist'  'volbeat':1
                                  'search_release'  'and':3 'blood':5 'cadillac':4 'gangsters':2 'guitar':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '2008':3,4 'eid':5 'heavy':7 'metal':6
                                    'search_combo'  '00dwimp':13 '00metal':14 '2008':15,16 'a':1A 'and':4A,10C 'blood':12C 'broken':2A 'cadillac':11C 'dawn':6A 'eid':17 'gangsters':9C 'guitar':8C 'heavy':19 'man':3A 'metal':18 'the':5A 'volbeat':7B
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  3A
                                           '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-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['danish', 'metal', 'elvis metal', 'rockabilly', 'heavy metal']
                                        'tag_date'  2008
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311073.419989  (2021-05-06 16:24:33)
                             'size'  7545935