======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '449'
                                          'artist'  'Timo Maas'
                                     'text_people'  'Ungly Kid Jay'
                                         'release'  'Music for the Maases Disc 2'
                                           'title'  'Annihilate [Timo Maas Mix]'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'house', 'electronica', 'electronic', 'trance']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '132.098'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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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')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
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'TALB' (Album/Movie/Show title)                     'Music for the Maases Disc 2'
'TBPM' (BPM (beats per minute))                     '132.098'
'TCOM' (Composer)                                   'Ungly Kid Jay'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Annihilate [Timo Maas Mix]'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '450293'
'TPE1' (Lead performer(s)/Soloist(s))               'Major North'
'TPE2' (Band/orchestra/accompaniment)               'Timo Maas'
'TPUB' (Publisher)                                  'Kinetic'
'TRCK' (Track number/Position in set)               '5'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', 'house', 'electronica', 'electronic', 'trance']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.08 dB'
'TXXX:replaygain_track_peak'                        '0.453800'

========================== row from database ==========================
                                              'id'  1335535
                                            'path'  /data/Music/Bulk/00poprockelectronic/Timo Maas/Timo Maas - Music for the Maases/Major North-Annihilate [Timo Maas Mix].mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  449
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  17999780
                                           'mtime'  1621696682
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Major North electronic generic radio dance
                                      'tag_artist'  Timo Maas
                                     'tag_release'  Music for the Maases Disc 2
                                       'tag_title'  Annihilate [Timo Maas Mix]
                                             'bpm'  132.098
                                    'search_title'  'annihilate':1 'maas':4 'mix':5,6 'timo':2,3
                                   'search_artist'  'maas':2 'timo':1
                                  'search_release'  '2':6 'disc':5 'for':2 'maases':4 'music':1 'the':3
                                     'search_rest'  '00poprockelectronic':1 'dance':7 'electronic':4 'generic':5 'major':2 'north':3 'radio':6
                                    'search_combo'  '00poprockelectronic':15 '2':14C 'annihilate':1A 'dance':21 'disc':13C 'electronic':18 'for':10C 'generic':19 'maas':4A,8B 'maases':12C 'major':16 'mix':5A,6A 'music':9C 'north':17 'radio':20 'the':11C 'timo':2A,3A,7B
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'house', 'electronica', 'electronic', 'trance']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696682.3607974  (2021-05-22 17:18:02)
                             'size'  17999780