======================== unified (from filesystem) ========================
                                         'bitrate'  '198.816'
                                        'duration'  '181'
                                          'artist'  'Alberta Hunter'
                                     'text_people'  ''
                                         'release'  'Flashbacks, Volume 3: Hot & Sexy: CopulationBlues 1926-1940'
                                           'title'  "You Can't Tell the Difference After Dark"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rhythm and blues', 'blues', 'jazz', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '25'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'set-th-sex;prerock-jb-jazz-unsorted'
                                             'bpm'  '145.163'
                                             'key'  '6A'
                                        'acoustid'  'f6d3edd6-1131-4365-9946-e932cbe1c92c'
rest: ''

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

'PRIV:AverageLevel:<\x15\x00\x00'                   PRIV(owner='AverageLevel', data=b'<\x15\x00\x00')
'PRIV:PeakValue:¯\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xaf\x7f\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Flashbacks, Volume 3: Hot & Sexy: CopulationBlues 1926-1940'
'TBPM' (BPM (beats per minute))                     '145.163'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-sex', 'prerock-jb-jazz-unsorted']
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000-10-16'
'TIT2' (Title/songname/content description)         "You Can't Tell the Difference After Dark"
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Alberta Hunter'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Trikont'
'TRCK' (Track number/Position in set)               '1/25'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Hunter, Alberta'
'TXXX:ASIN'                                         'B0000517E6'
'TXXX:Acoustid Id'                                  'f6d3edd6-1131-4365-9946-e932cbe1c92c'
'TXXX:CATALOGNUMBER'                                'TRIKONT US-0277'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '581f71a9-9ae1-4528-ab6f-08941c988be5'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'd5a73b4d-62ea-4693-af94-f6ca35a57e58'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['rhythm and blues', 'blues', 'jazz', 'female vocalists']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.00 dB'
'TXXX:replaygain_track_peak'                        '0.352695'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'e05e82fd-04bb-448f-be0b-53d66919ec1c')

========================== row from database ==========================
                                              'id'  1521521
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Various Artists - Copulation Blues (1926 - 1940)/01 - alberta hunter - you can_t tell the difference after dark.mp3
                                         'working'  None
                                         'bitrate'  198
                                    'duration_sec'  181
                                           'genre'  set-th-sex;prerock-jb-jazz-unsorted
                                        'filesize'  4513728
                                           'mtime'  1620537057
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Various Artists (1926 1940) 01 alberta hunter you can_t tell difference after dark set sex;prerock jb jazz unsorted
                                      'tag_artist'  Alberta Hunter
                                     'tag_release'  Flashbacks, Volume 3: Hot & Sexy: CopulationBlues 1926-1940
                                       'tag_title'  You Can't Tell the Difference After Dark
                                             'bpm'  145.163
                                    'search_title'  'after':8 'can':2 'cant':4 'dark':9 'difference':7 't':3 'tell':5 'the':6 'you':1
                                   'search_artist'  'alberta':1 'hunter':2
                                  'search_release'  '1926':10 '19261940':12 '1940':11 '3':4,5 'blues':14 'copulation':13 'copulationblues':9 'flashbacks':1,2 'hot':6 'sexy':7,8 'volume':3
                                     'search_rest'  '1926':7,8 '1940':9,10 'after':18 'alberta':11 'artists':6 'can':14 'country':4 'dark':19 'difference':17 'exotica':2 'hunter':12 'jazz':1 'jb':25 'oldies':3 'prerock':22,24 'set':20 'sex':21,23 't':15 'tell':16 'unsorted':26 'various':5 'you':13
                                    'search_combo'  '1926':21C,32,33 '19261940':23C '1940':22C,34,35 '3':15C,16C 'after':8A,43 'alberta':10B,36 'artists':31 'blues':25C 'can':2A,39 'cant':4A 'copulation':24C 'copulationblues':20C 'country':29 'dark':9A,44 'difference':7A,42 'exotica':27 'flashbacks':12C,13C 'hot':17C 'hunter':11B,37 'jazz':26 'jb':50 'oldies':28 'prerock':47,49 'set':45 'sex':46,48 'sexy':18C,19C 't':3A,40 'tell':5A,41 'the':6A 'unsorted':51 'various':30 'volume':14C 'you':1A,38
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['rhythm and blues', 'blues', 'jazz', 'female vocalists']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620537056.763603  (2021-05-09 07:10:56)
                             'size'  4513728