======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '239'
                                          'artist'  'Pop Will Eat Itself'
                                     'text_people'  'Clint Mansell/Veston Pance'
                                         'release'  'Dos Dedos Mis Amigos'
                                           'title'  'Ich Bin Ein Auslander'
                                           'quals'  ("['Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-HAP-1', "
 "'Q-LOCALNESS-1', 'Q-SYN-3', 'Q-BUSY-3', 'Q-GRIT-3', 'Q-PLAY-2', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-3']")
                                      'lastfmtags'  "['industrial', 'alternative', 'electronic', 'grebo', 'indie']"
                                     'discogstags'  "['industrial', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'eid-unsorted'
                                             'bpm'  '92.1'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00001310 000017A2 0000731F 00008061 000351CB 0003333A 00008000 00008000 '
 '0002C84A 0000F443')
'MCDI' (Music CD identifier)                        MCDI(data=b'B\x00+\x00B\x006\x00+\x004\x006\x00D\x00C\x00+\x008\x002\x00D\x00E\x00+\x00C\x00A\x005\x005\x00+\x001\x001\x000\x002\x008\x00+\x001\x004\x00A\x002\x005\x00+\x001\x008\x009\x007\x000\x00+\x001\x00E\x001\x001\x008\x00+\x002\x005\x002\x009\x00C\x00+\x002\x009\x00E\x000\x007\x00+\x002\x00D\x00C\x005\x00D\x00+\x003\x003\x005\x007\x007\x00\x00\x00')
'PRIV:AverageLevel:{ \x00\x00'                      PRIV(owner='AverageLevel', data=b'{ \x00\x00')
'PRIV:PeakValue:!}\x00\x00'                         PRIV(owner='PeakValue', data=b'!}\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 \x002\x000\x006\x007\x007\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x001\x006\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x002\x004\x001\x006\x009\x007\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x000\x006\x007\x007\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x001\x006\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x002\x004\x001\x006\x009\x007\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:Ѽ\x12P\x8fi~G¾åUs\x1d©â\x83'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xd1\xbc\x12P\x8fi~G\xbe\xe5Us\x1d\xa9\xe2\x83')
'PRIV:WM/WMCollectionID:Ѽ\x12P\x8fi~G¾åUs\x1d©â\x83'  PRIV(owner='WM/WMCollectionID', data=b'\xd1\xbc\x12P\x8fi~G\xbe\xe5Us\x1d\xa9\xe2\x83')
'PRIV:WM/WMContentID:\x9d\x87ô$!\x97ê@\x98äã!-¡ý\x1f'  PRIV(owner='WM/WMContentID', data=b'\x9d\x87\xf4$!\x97\xea@\x98\xe4\xe3!-\xa1\xfd\x1f')
'TALB' (Album/Movie/Show title)                     'Dos Dedos Mis Amigos'
'TBPM' (BPM (beats per minute))                     '92.1'
'TCOM' (Composer)                                   'Clint Mansell/Veston Pance'
'TCON' (Content type, a.k.a. Genre)                 'eid-unsorted'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Ich Bin Ein Auslander'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '239440'
'TPE1' (Lead performer(s)/Soloist(s))               'Pop Will Eat Itself'
'TPE2' (Band/orchestra/accompaniment)               'Pop Will Eat Itself'
'TPUB' (Publisher)                                  'Infectious'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '3'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['industrial', 'electronic']
'TXXX:lastfmtags'                                   ['industrial', 'alternative', 'electronic', 'grebo', 'indie']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.67 dB'
'TXXX:replaygain_track_peak'                        '0.425266'

========================== row from database ==========================
                                              'id'  1489714
                                            'path'  /data/Music/Bulk/00dwimp/01 ich bin ein auslander.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  239
                                           'genre'  eid-unsorted
                                        'filesize'  9574627
                                           'mtime'  1620311617
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 01 ich bin ein auslander eid unsorted
                                      'tag_artist'  Pop Will Eat Itself
                                     'tag_release'  Dos Dedos Mis Amigos
                                       'tag_title'  Ich Bin Ein Auslander
                                             'bpm'  92.1
                                    'search_title'  'auslander':4 'bin':2 'ein':3 'ich':1
                                   'search_artist'  'eat':3 'itself':4 'pop':1 'will':2
                                  'search_release'  'amigos':4 'dedos':2 'dos':1 'mis':3
                                     'search_rest'  '00dwimp':1 'auslander':5 'bin':3 'eid':6 'ein':4 'ich':2 'unsorted':7
                                    'search_combo'  '00dwimp':13 'amigos':12C 'auslander':4A,17 'bin':2A,15 'dedos':10C 'dos':9C 'eat':7B 'eid':18 'ein':3A,16 'ich':1A,14 'itself':8B 'mis':11C 'pop':5B 'unsorted':19 'will':6B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'Q-OLDST-3', 'Q-GRIT-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-3', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-1', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['industrial', 'alternative', 'electronic', 'grebo', 'indie']
                                        'tag_date'  1994
                                     'discogstags'  ['industrial', 'electronic']

============================== file details ==============================
                                           'mtime'  1620311617.0047793  (2021-05-06 16:33:37)
                             'size'  9574627