======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '322'
                                          'artist'  'Elbow'
                                     'text_people'  ''
                                         'release'  'The Seldom Seen Kid'
                                           'title'  'Some Riot'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['indie', 'alternative', 'britpop', 'indie rock', 'rock']"
                                     'discogstags'  "['rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '143.7'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'C\x00+\x009\x006\x00+\x005\x009\x00F\x002\x00+\x00A\x00E\x009\x00F\x00+\x001\x001\x005\x003\x005\x00+\x001\x005\x005\x008\x000\x00+\x001\x00A\x003\x00F\x005\x00+\x001\x00F\x002\x00C\x00C\x00+\x002\x004\x00E\x00E\x00C\x00+\x002\x009\x00D\x006\x007\x00+\x002\x00F\x00C\x001\x006\x00+\x003\x006\x00F\x009\x001\x00+\x003\x00C\x007\x00D\x004\x00+\x003\x00E\x00A\x00D\x001\x00\x00\x00')
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'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\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')
'PRIV:WM/Provider:A\x00M\x00G\x00 \x00&\x00 \x00M\x00i\x00c\x00r\x00o\x00s\x00o\x00f\x00t\x00\x00\x00'  PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00 \x00&\x00 \x00M\x00i\x00c\x00r\x00o\x00s\x00o\x00f\x00t\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x003\x004\x000\x009\x007\x006\x00;\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x003\x004\x000\x009\x007\x006\x00;\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:Ý\x9aäYm]\x12C¹«ÔÅ;´/'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xdd\x9a\xe4Ym]\x12C\xb9\xab\xd4\xc5;\xc2\xb4/')
'PRIV:WM/WMCollectionID:Ý\x9aäYm]\x12C¹«ÔÅ;´/'     PRIV(owner='WM/WMCollectionID', data=b'\xdd\x9a\xe4Ym]\x12C\xb9\xab\xd4\xc5;\xc2\xb4/')
'PRIV:WM/WMContentID:wÜ¥Î\x06\x9d3N¼&r\x97Ô\x85ôÞ'  PRIV(owner='WM/WMContentID', data=b'w\xdc\xa5\xce\x06\x9d3N\xbc&r\x97\xd4\x85\xf4\xde')
'TALB' (Album/Movie/Show title)                     'The Seldom Seen Kid'
'TBPM' (BPM (beats per minute))                     '143.7'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Some Riot'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '323186'
'TPE1' (Lead performer(s)/Soloist(s))               'Elbow'
'TPUB' (Publisher)                                  'Geffen'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'britpop', 'indie rock', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.18 dB'
'TXXX:replaygain_track_peak'                        '0.359355'

========================== row from database ==========================
                                              'id'  1328177
                                            'path'  /data/Music/Bulk/00poprockelectronic/Elbow/The Seldom Seen Kid (2008)/09. Some Riot.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  322
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  12984411
                                           'mtime'  1621697339
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic (2008) 09. ifs songwriter indie rock
                                      'tag_artist'  Elbow
                                     'tag_release'  The Seldom Seen Kid
                                       'tag_title'  Some Riot
                                             'bpm'  143.7
                                    'search_title'  'riot':2 'some':1
                                   'search_artist'  'elbow':1
                                  'search_release'  'kid':4 'seen':3 'seldom':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 '09':4,5 '2008':2,3 'ifs':6 'indie':8 'rock':9 'songwriter':7
                                    'search_combo'  '00poprockelectronic':8 '09':11,12 '2008':9,10 'elbow':3B 'ifs':13 'indie':15 'kid':7C 'riot':2A 'rock':16 'seen':6C 'seldom':5C 'some':1A 'songwriter':14 'the':4C
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'britpop', 'indie rock', 'rock']
                                        'tag_date'  2008
                                     'discogstags'  ['rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1621697338.6270838  (2021-05-22 17:28:58)
                             'size'  12984411