======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '206'
                                          'artist'  'Atari Teenage Riot'
                                     'text_people'  'Alec Empire'
                                         'release'  'Delete Yourself'
                                           'title'  'Raverbashing'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['punk', 'digital hardcore', 'industrial', 'electronic', 'hardcore']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '90.9'
                                             'key'  '3A'
                                        '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')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x004\x008\x006\x006\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x001\x009\x009\x008\x008\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x009\x001\x007\x008\x002\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x004\x008\x006\x006\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x001\x009\x009\x008\x008\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x009\x001\x007\x008\x002\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x8f1\x1b1\x82åtO\x9f\x8f¯Rµ\x0eÒ\r'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x8f1\x1b1\x82\xe5tO\x9f\x8f\xafR\xb5\x0e\xd2\r')
'PRIV:WM/WMCollectionID:\x8f1\x1b1\x82åtO\x9f\x8f¯Rµ\x0eÒ\r'  PRIV(owner='WM/WMCollectionID', data=b'\x8f1\x1b1\x82\xe5tO\x9f\x8f\xafR\xb5\x0e\xd2\r')
'PRIV:WM/WMContentID:ÀX\x9fÉ\x9f=±D\xa0ÿ^ÃÛ\x8dO\x8e'  PRIV(owner='WM/WMContentID', data=b'\xc0X\x9f\xc9\x9f=\xb1D\xa0\xff^\xc3\xdb\x8dO\x8e')
'TALB' (Album/Movie/Show title)                     'Delete Yourself'
'TBPM' (BPM (beats per minute))                     '90.9'
'TCOM' (Composer)                                   'Alec Empire'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Raverbashing'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Atari Teenage Riot'
'TPE2' (Band/orchestra/accompaniment)               'Atari Teenage Riot'
'TPUB' (Publisher)                                  'Digital Hardcore'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['punk', 'digital hardcore', 'industrial', 'electronic', 'hardcore']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.86 dB'
'TXXX:replaygain_track_peak'                        '0.522438'

========================== row from database ==========================
                                              'id'  1297499
                                            'path'  /data/Music/Bulk/00poprockelectronic/ATR (atari teenage riot)/ATR - delete yourself/Atari Teenage Riot - Delete Yourself - 03 - Raverbashing.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  206
                                           'genre'  rock-gr-punk
                                        'filesize'  4952154
                                           'mtime'  1622659238
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic ATR (atari teenage riot) ATR delete yourself 03 rock gr punk
                                      'tag_artist'  Atari Teenage Riot
                                     'tag_release'  Delete Yourself
                                       'tag_title'  Raverbashing
                                             'bpm'  90.9
                                    'search_title'  'raverbashing':1
                                   'search_artist'  'atari':1 'riot':3 'teenage':2
                                  'search_release'  'delete':1 'yourself':2
                                     'search_rest'  '00poprockelectronic':1 'atari':3,4 'atr':2 'delete':8 'gr':11 'punk':12 'riot':6,7 'rock':10 'teenage':5 'yourself':9
                                    'search_combo'  '00poprockelectronic':7 'atari':2B,9,10 'atr':8 'delete':5C,14 'gr':17 'punk':18 'raverbashing':1A 'riot':4B,12,13 'rock':16 'teenage':3B,11 'yourself':6C,15
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['punk', 'digital hardcore', 'industrial', 'electronic', 'hardcore']
                                        'tag_date'  1997
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1622659237.7459068  (2021-06-02 20:40:37)
                             'size'  4952154