======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '168'
                                          'artist'  'The Platters'
                                     'text_people'  'Buck Ram/Mickey Addy'
                                         'release'  'The Magic Touch: An Anthology Disc 2'
                                           'title'  'Remember When'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', '60s', 'soul', 'doo wop', 'rhythm and blues', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-doowop'
                                             'bpm'  '141.118'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-254 POS 41'
'COMM:ID3v1 Comment:XXX'                            '59-254 POS 41'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x009\x00+\x00B\x006\x00+\x003\x000\x00F\x009\x00+\x006\x001\x003\x002\x00+\x009\x002\x008\x001\x00+\x00C\x002\x003\x00A\x00+\x00F\x003\x00A\x00C\x00+\x001\x001\x00A\x00F\x000\x00+\x001\x004\x009\x002\x001\x00+\x001\x007\x004\x00B\x00C\x00+\x001\x00A\x001\x00C\x003\x00+\x001\x00D\x004\x003\x00E\x00+\x002\x000\x005\x009\x00E\x00+\x002\x003\x004\x00D\x00D\x00+\x002\x006\x003\x009\x00F\x00+\x002\x009\x001\x00B\x007\x00+\x002\x00C\x009\x009\x000\x00+\x002\x00F\x008\x002\x00D\x00+\x003\x002\x002\x00C\x00D\x00+\x003\x004\x00C\x003\x00F\x00+\x003\x007\x00D\x00A\x004\x00+\x003\x00B\x004\x009\x000\x00+\x003\x00E\x000\x002\x008\x00+\x004\x001\x002\x007\x008\x00+\x004\x004\x000\x007\x007\x00+\x004\x006\x00D\x007\x002\x00+\x004\x009\x004\x009\x004\x00\x00\x00')
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'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')
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'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x001\x005\x003\x009\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x001\x005\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x007\x007\x001\x003\x006\x007\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x001\x005\x003\x009\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x001\x005\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x007\x007\x001\x003\x006\x007\x00\x00\x00')
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"PRIV:WM/WMCollectionID:\x18&\x98'-z(A\x8ad\x02\x8búUÂá"  PRIV(owner='WM/WMCollectionID', data=b"\x18&\x98'-z(A\x8ad\x02\x8b\xfaU\xc2\xe1")
'PRIV:WM/WMContentID:d\x9d\x05\x0cf\x96\x99L\x80,\x1c\x1fÏ´EÒ'  PRIV(owner='WM/WMContentID', data=b'd\x9d\x05\x0cf\x96\x99L\x80,\x1c\x1f\xcf\xb4E\xd2')
'TALB' (Album/Movie/Show title)                     'The Magic Touch: An Anthology Disc 2'
'TBPM' (BPM (beats per minute))                     '141.118'
'TCOM' (Composer)                                   'Buck Ram/Mickey Addy'
'TCON' (Content type, a.k.a. Genre)                 'prerock-doowop'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'Remember When'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '168533'
'TPE1' (Lead performer(s)/Soloist(s))               'Platters'
'TPE2' (Band/orchestra/accompaniment)               'The Platters'
'TPUB' (Publisher)                                  'Mercury'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', '60s', 'soul', 'doo wop', 'rhythm and blues', '50s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.50 dB'
'TXXX:replaygain_track_peak'                        '0.401267'

========================== row from database ==========================
                                              'id'  1450776
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-254 - Platters - Remember When.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  168
                                           'genre'  prerock-doowop
                                        'filesize'  6739452
                                           'mtime'  1621705424
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 254 prerock doowop
                                      'tag_artist'  The Platters
                                     'tag_release'  The Magic Touch: An Anthology Disc 2
                                       'tag_title'  Remember When
                                             'bpm'  141.118
                                    'search_title'  'remember':1 'when':2
                                   'search_artist'  'platters':2 'the':1
                                  'search_release'  '2':8 'an':5 'anthology':6 'disc':7 'magic':2 'the':1 'touch':3,4
                                     'search_rest'  '00oldiepop':5 '1959':6 '254':8 '59':7 'country':4 'doowop':10 'exotica':2 'jazz':1 'oldies':3 'prerock':9
                                    'search_combo'  '00oldiepop':17 '1959':18 '2':12C '254':20 '59':19 'an':9C 'anthology':10C 'country':16 'disc':11C 'doowop':22 'exotica':14 'jazz':13 'magic':6C 'oldies':15 'platters':4B 'prerock':21 'remember':1A 'the':3B,5C 'touch':7C,8C 'when':2A
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['oldies', '60s', 'soul', 'doo wop', 'rhythm and blues', '50s']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705424.35515  (2021-05-22 19:43:44)
                             'size'  6739452