======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '232'
                                          'artist'  'In Flames'
                                     'text_people'  'Mikael Stanne'
                                         'release'  'The Tokyo Showdown: Live'
                                           'title'  'Behind Space'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swedish', 'death metal', 'melodic death metal', 'metal', 'swedish metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'eid-metal-death;eid-metal-melodic'
                                             'bpm'  '139.9'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'F\x00+\x009\x006\x00+\x005\x002\x00E\x00B\x00+\x009\x004\x002\x005\x00+\x00D\x002\x00C\x00A\x00+\x001\x002\x000\x004\x00A\x00+\x001\x006\x00D\x00F\x00C\x00+\x001\x00A\x00D\x006\x00C\x00+\x001\x00E\x008\x006\x00D\x00+\x002\x002\x00C\x00A\x001\x00+\x002\x007\x00C\x000\x00E\x00+\x002\x00B\x008\x002\x00C\x00+\x002\x00F\x00B\x00A\x004\x00+\x003\x004\x006\x008\x001\x00+\x003\x009\x006\x009\x005\x00+\x003\x00E\x00A\x00B\x004\x00+\x004\x002\x00A\x006\x00F\x00\x00\x00')
'PRIV:AverageLevel:{\x13\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x13\x00\x00')
'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'          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 \x005\x005\x001\x005\x006\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x002\x000\x000\x003\x001\x009\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x003\x004\x005\x009\x001\x000\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x005\x001\x005\x006\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x002\x000\x000\x003\x001\x009\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x003\x004\x005\x009\x001\x000\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x10\x05î\xad\x01ç[O\x83\x03\x82wKz\x12\x0e'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x10\x05\xee\xad\x01\xe7[O\x83\x03\x82wKz\x12\x0e')
'PRIV:WM/WMCollectionID:\x10\x05î\xad\x01ç[O\x83\x03\x82wKz\x12\x0e'  PRIV(owner='WM/WMCollectionID', data=b'\x10\x05\xee\xad\x01\xe7[O\x83\x03\x82wKz\x12\x0e')
'PRIV:WM/WMContentID:\x87Õ%Ô\x93|*E»\x1aP\x89ê\x92Å\x9f'  PRIV(owner='WM/WMContentID', data=b'\x87\xd5%\xd4\x93|*E\xbb\x1aP\x89\xea\x92\xc5\x9f')
'TALB' (Album/Movie/Show title)                     'The Tokyo Showdown: Live'
'TBPM' (BPM (beats per minute))                     '139.9'
'TCOM' (Composer)                                   'Mikael Stanne'
'TCON' (Content type, a.k.a. Genre)                 ['eid-metal-death', 'eid-metal-melodic']
'TCOP' (Copyright message)                          '?'
'TDRC' (Recording time)                             '2001'
'TENC' (Encoded by)                                 '?'
'TIT2' (Title/songname/content description)         'Behind Space'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'In Flames'
'TPE2' (Band/orchestra/accompaniment)               'In Flames'
'TPUB' (Publisher)                                  'Nuclear Blast America'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['swedish', 'death metal', 'melodic death metal', 'metal', 'swedish metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.69 dB'
'TXXX:replaygain_track_peak'                        '0.448237'

========================== row from database ==========================
                                              'id'  1399832
                                            'path'  /data/Music/Bulk/00dwimp/00metal/In Flames/The Tokyo Showdown_ Live/In Flames-The Tokyo Showdown- Live-Behind Space.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  232
                                           'genre'  eid-metal-death;eid-metal-melodic
                                        'filesize'  5591448
                                           'mtime'  1620302000
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Showdown_ eid metal death;eid metal melodic
                                      'tag_artist'  In Flames
                                     'tag_release'  The Tokyo Showdown: Live
                                       'tag_title'  Behind Space
                                             'bpm'  139.9
                                    'search_title'  'behind':1 'space':2
                                   'search_artist'  'flames':2 'in':1
                                  'search_release'  'live':5 'showdown':3,4 'the':1 'tokyo':2
                                     'search_rest'  '00dwimp':1 '00metal':2 'death':6,8 'eid':4,7,9 'melodic':10 'metal':5 'showdown':3
                                    'search_combo'  '00dwimp':10 '00metal':11 'behind':1A 'death':15,17 'eid':13,16,18 'flames':4B 'in':3B 'live':9C 'melodic':19 'metal':14 'showdown':7C,8C,12 'space':2A 'the':5C 'tokyo':6C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['swedish', 'death metal', 'melodic death metal', 'metal', 'swedish metal']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620301999.602165  (2021-05-06 13:53:19)
                             'size'  5591448