======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '272'
                                          'artist'  'Foals'
                                     'text_people'  ''
                                         'release'  'Antidotes'
                                           'title'  'Heavy Water'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'math rock', 'electronic', 'british', 'indie rock']"
                                     'discogstags'  "['rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '11'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '132.9'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000FDB 00000D00 0000832F 00007A3F 0003571A 00035734 0000927F 0000973F '
 '0002E0D6 0002E0D6')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000B1C 0000000000B71854 00000000 00A5FDE1 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '11+45DFECC91483B59B8A2BD267776820E7+10560855'
'TALB' (Album/Movie/Show title)                     'Antidotes'
'TBPM' (BPM (beats per minute))                     '132.9'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2008'
'TENC' (Encoded by)                                 'iTunes v7.6.0.29'
'TIT2' (Title/songname/content description)         'Heavy Water'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Foals'
'TRCK' (Track number/Position in set)               '7/11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'math rock', 'electronic', 'british', 'indie rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'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'                        '+0.36 dB'
'TXXX:replaygain_track_peak'                        '0.421297'

========================== row from database ==========================
                                              'id'  1273042
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Foals/Antidotes/07 Heavy Water.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  272
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  10888995
                                           'mtime'  1621697496
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 07 ifs songwriter indie rock
                                      'tag_artist'  Foals
                                     'tag_release'  Antidotes
                                       'tag_title'  Heavy Water
                                             'bpm'  132.9
                                    'search_title'  'heavy':1 'water':2
                                   'search_artist'  'foals':1
                                  'search_release'  'antidotes':1
                                     'search_rest'  '00singer':1 'eos':3 'ifs':4 'indie':5 'rock':6 'songwriter':2
                                    'search_combo'  '00singer':5 'antidotes':4C 'eos':7 'foals':3B 'heavy':1A 'ifs':8 'indie':9 'rock':10 'songwriter':6 'water':2A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'math rock', 'electronic', 'british', 'indie rock']
                                        'tag_date'  2008
                                     'discogstags'  ['rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1621697496.4490368  (2021-05-22 17:31:36)
                             'size'  10888995