======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '174'
                                          'artist'  'Krezip'
                                     'text_people'  ''
                                         'release'  'Run Around'
                                           'title'  'Run Around the World'
                                           'quals'  ("['Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['pop rock', 'dutch', 'female vocalists', 'pop', 'rock']"
                                     'discogstags'  "['rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '7'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '131.328'
                                             'key'  '6A'
                                        'acoustid'  '6785df38-c7df-4c4b-a505-6051d6638ec3'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Run Around'
'TBPM' (BPM (beats per minute))                     '131.328'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Run Around the World'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Krezip'
'TPE2' (Band/orchestra/accompaniment)               'Krezip'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '1/7'
'TSO2'                                              'Krezip'
'TSOP' (Performer sort order)                       'Krezip'
'TXXX:Acoustid Id'                                  '6785df38-c7df-4c4b-a505-6051d6638ec3'
'TXXX:BARCODE'                                      '5413356730326'
'TXXX:MusicBrainz Album Artist Id'                  'a2118d09-5df0-4c84-8183-00c128f134aa'
'TXXX:MusicBrainz Album Id'                         '5f88f5cf-ac69-4a17-8608-901a636089bc'
'TXXX:MusicBrainz Album Release Country'            'NL'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'a2118d09-5df0-4c84-8183-00c128f134aa'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'pop rock']
'TXXX:lastfmtags'                                   ['pop rock', 'dutch', 'female vocalists', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.74 dB'
'TXXX:replaygain_track_peak'                        '0.463861'
'TXXX:tracknum'                                     '01'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'e610207f-0df4-4f15-9f11-8d1a4c806e5a')

========================== row from database ==========================
                                              'id'  1491535
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Run Around/Krezip - Run Around the World - 01.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  174
                                           'genre'  rock-unsorted
                                        'filesize'  3485382
                                           'mtime'  1620385891
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch 01 rock unsorted
                                      'tag_artist'  Krezip
                                     'tag_release'  Run Around
                                       'tag_title'  Run Around the World
                                             'bpm'  131.328
                                    'search_title'  'around':2 'run':1 'the':3 'world':4
                                   'search_artist'  'krezip':1
                                  'search_release'  'around':2 'run':1
                                     'search_rest'  '00dutch':4 '00mid':1 'europe':3 'north':2 'rock':5 'unsorted':6
                                    'search_combo'  '00dutch':11 '00mid':8 'around':2A,7C 'europe':10 'krezip':5B 'north':9 'rock':12 'run':1A,6C 'the':3A 'unsorted':13 'world':4A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop rock', 'dutch', 'female vocalists', 'pop', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  ['rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1620385891.3189254  (2021-05-07 13:11:31)
                             'size'  3485382