======================== unified (from filesystem) ========================
                                         'bitrate'  '243.973'
                                        'duration'  '192'
                                          'artist'  'Linea 77'
                                     'text_people'  ''
                                         'release'  'Available For Propaganda'
                                           'title'  'Charon'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rapcore', 'metal', 'crossover', 'alternative', 'nu metal', 'italian']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '111.578'
                                             'key'  '8A'
                                        '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 \x007\x009\x009\x005\x009\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x003\x000\x006\x008\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x008\x007\x003\x009\x007\x003\x006\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x007\x009\x009\x005\x009\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x003\x000\x006\x008\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x008\x007\x003\x009\x007\x003\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x91\x07\x15¡¨R\x1cK§)XV\x95ò\x07B'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x91\x07\x15\xa1\xa8R\x1cK\xa7)XV\x95\xf2\x07B')
'PRIV:WM/WMCollectionID:\x91\x07\x15¡¨R\x1cK§)XV\x95ò\x07B'  PRIV(owner='WM/WMCollectionID', data=b'\x91\x07\x15\xa1\xa8R\x1cK\xa7)XV\x95\xf2\x07B')
'PRIV:WM/WMContentID:\x19B\x9ax7½xH\x95ØÀÈ\x18p¿@'  PRIV(owner='WM/WMContentID', data=b'\x19B\x9ax7\xbdxH\x95\xd8\xc0\xc8\x18p\xbf@')
'PRIV:http://www.cdtag.com:\x02\x00ó\x1cÂ\x00'      PRIV(owner='http://www.cdtag.com', data=b'\x02\x00\xf3\x1c\xc2\x00')
'TALB' (Album/Movie/Show title)                     'Available For Propaganda'
'TBPM' (BPM (beats per minute))                     '111.578'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDRC' (Recording time)                             '2005-09-24'
'TIT2' (Title/songname/content description)         'Charon'
'TKEY' (Initial key)                                '8A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Linea 77'
'TPE2' (Band/orchestra/accompaniment)               'Linea 77'
'TPUB' (Publisher)                                  'Earache'
'TRCK' (Track number/Position in set)               '4'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:Release type'                                 'Normal Release'
'TXXX:Rip date'                                     '2005-09-23'
'TXXX:Ripping tool'                                 'EAC'
'TXXX:Source'                                       'CD'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['rapcore', 'metal', 'crossover', 'alternative', 'nu metal', 'italian']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.316830'

========================== row from database ==========================
                                              'id'  1303187
                                            'path'  /data/Music/Bulk/00poprockelectronic/Linea 77/Available for Propaganda/04-linea_77-charon.mp3
                                         'working'  None
                                         'bitrate'  244
                                    'duration_sec'  192
                                           'genre'  eid-metal-nu
                                        'filesize'  5868803
                                           'mtime'  1620311125
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic for 04 linea_77 charon eid metal nu
                                      'tag_artist'  Linea 77
                                     'tag_release'  Available For Propaganda
                                       'tag_title'  Charon
                                             'bpm'  111.578
                                    'search_title'  'charon':1
                                   'search_artist'  '77':2 'linea':1
                                  'search_release'  'available':1 'for':2 'propaganda':3
                                     'search_rest'  '00poprockelectronic':1 '77':4 'charon':5 'eid':6 'for':2 'linea':3 'metal':7 'nu':8
                                    'search_combo'  '00poprockelectronic':7 '77':3B,10 'available':4C 'charon':1A,11 'eid':12 'for':5C,8 'linea':2B,9 'metal':13 'nu':14 'propaganda':6C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['rapcore', 'metal', 'crossover', 'alternative', 'nu metal', 'italian']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311125.3452127  (2021-05-06 16:25:25)
                             'size'  5868803