======================== unified (from filesystem) ========================
                                         'bitrate'  '214.34'
                                        'duration'  '146'
                                          'artist'  'CAN'
                                     'text_people'  ''
                                         'release'  'Unlimited Edition'
                                           'title'  'Doko E.'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'krautrock', 'progressive rock', 'psychedelic', 'experimental']"
                                     'discogstags'  "['krautrock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '19'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-cppex-experimental or noise'
                                             'bpm'  '98.5'
                                             'key'  '8A'
                                        'acoustid'  '2d7f4c1c-45d7-4991-8254-672f6cdf15ae'
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000014 00000014 00000032 00000032 00019653 00019653 00000000 00000000 '
 '0000B397 0000D2B6')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000952 000000000062A39E 00000000 003BE43C 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Unlimited Edition'
'TBPM' (BPM (beats per minute))                     '98.5'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-experimental or noise'
'TDOR' (Original release time)                      '1974'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Doko E.'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'CAN'
'TPE2' (Band/orchestra/accompaniment)               'CAN'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '2/19'
'TSO2'                                              'Can'
'TSOP' (Performer sort order)                       'Can'
'TXXX:Acoustid Id'                                  '2d7f4c1c-45d7-4991-8254-672f6cdf15ae'
'TXXX:MusicBrainz Album Artist Id'                  '13501c7d-d181-45ba-af52-5f101d8516a0'
'TXXX:MusicBrainz Album Id'                         '60d2e047-0908-485a-a64e-f91c2d701444'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '13501c7d-d181-45ba-af52-5f101d8516a0'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['krautrock', 'rock']
'TXXX:lastfmtags'                                   ['german', 'krautrock', 'progressive rock', 'psychedelic', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.55 dB'
'TXXX:replaygain_track_peak'                        '1.028190'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'2ccea88d-2be5-4d9d-9b59-5cb5e79c2e96')

========================== row from database ==========================
                                              'id'  1412542
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/CAN - Unlimited Edition/02 Doko E.mp3
                                         'working'  None
                                         'bitrate'  214
                                    'duration_sec'  146
                                           'genre'  rock-cppex-experimental or noise
                                        'filesize'  3940423
                                           'mtime'  1636918161
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 02 rock cppex experimental or noise
                                      'tag_artist'  CAN
                                     'tag_release'  Unlimited Edition
                                       'tag_title'  Doko E.
                                             'bpm'  98.5
                                    'search_title'  'doko':1 'e':2,3
                                   'search_artist'  'can':1
                                  'search_release'  'edition':2 'unlimited':1
                                     'search_rest'  'classicprogpsy':1 'cppex':3 'experimental':4 'noise':6 'or':5 'rock':2
                                    'search_combo'  'can':4B 'classicprogpsy':7 'cppex':9 'doko':1A 'e':2A,3A 'edition':6C 'experimental':10 'noise':12 'or':11 'rock':8 'unlimited':5C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['german', 'krautrock', 'progressive rock', 'psychedelic', 'experimental']
                                        'tag_date'  2005
                                     'discogstags'  ['krautrock', 'rock']

============================== file details ==============================
                                           'mtime'  1636918160.520889  (2021-11-14 20:29:20)
                             'size'  3940423