======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '179'
                                          'artist'  'Laurie Anderson'
                                     'text_people'  'Laurie Anderson'
                                         'release'  'Big Science'
                                           'title'  'It Tango'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  ("['electronic', 'female vocalists', 'avant garde', 'spoken word', "
 "'experimental']")
                                     'discogstags'  "['electronic', 'rock', 'avantgarde', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1982'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '144.233'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

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'COMM:iTunNORM:eng'                                 (' 00000061 00000071 00000DFF 000013A0 000020D5 000020D5 00004CC5 00005984 '
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'MCDI' (Music CD identifier)                        MCDI(data=b'9\x00+\x009\x006\x00+\x005\x001\x003\x006\x00+\x00C\x001\x00F\x002\x00+\x00E\x00B\x00D\x009\x00+\x001\x001\x002\x00D\x00A\x00+\x001\x006\x00A\x007\x001\x00+\x001\x00F\x00F\x001\x008\x00+\x002\x003\x003\x00C\x000\x00+\x002\x007\x008\x003\x00C\x00+\x002\x00A\x00C\x00E\x00C\x00\x00\x00')
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'PRIV:PeakValue:\x00[\x00\x00'                      PRIV(owner='PeakValue', data=b'\x00[\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 \x00 \x00 \x00 \x006\x001\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x005\x004\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x007\x004\x004\x002\x002\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x00 \x00 \x006\x001\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x005\x004\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x007\x004\x004\x002\x002\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:h´¤1ä®ÕC\x83QV0+q\x1b\x99'  PRIV(owner='WM/WMCollectionGroupID', data=b'h\xb4\xa41\xe4\xae\xd5C\x83QV0+q\x1b\x99')
'PRIV:WM/WMCollectionID:h´¤1ä®ÕC\x83QV0+q\x1b\x99'  PRIV(owner='WM/WMCollectionID', data=b'h\xb4\xa41\xe4\xae\xd5C\x83QV0+q\x1b\x99')
'PRIV:WM/WMContentID:\x96!\x82\x023%ÀI¤\x03d@·bÀ\x86'  PRIV(owner='WM/WMContentID', data=b'\x96!\x82\x023%\xc0I\xa4\x03d@\xb7b\xc0\x86')
'TALB' (Album/Movie/Show title)                     'Big Science'
'TBPM' (BPM (beats per minute))                     '144.233'
'TCOM' (Composer)                                   'Laurie Anderson'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1982'
'TIT2' (Title/songname/content description)         'It Tango'
'TKEY' (Initial key)                                '8B'
'TLEN' (Length)                                     '179826'
'TPE1' (Lead performer(s)/Soloist(s))               'Laurie Anderson'
'TPE2' (Band/orchestra/accompaniment)               'Laurie Anderson'
'TPUB' (Publisher)                                  'Warner Bros.'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'rock', 'avantgarde', 'experimental']
'TXXX:lastfmtags'                                   ['electronic', 'female vocalists', 'avant garde', 'spoken word', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.11 dB'
'TXXX:replaygain_track_peak'                        '0.989024'

========================== row from database ==========================
                                              'id'  1360741
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/laurie anderson - it tango(2).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  179
                                           'genre'  rock-unsorted
                                        'filesize'  2881130
                                           'mtime'  1620392400
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] laurie anderson it tango(2) rock unsorted
                                      'tag_artist'  Laurie Anderson
                                     'tag_release'  Big Science
                                       'tag_title'  It Tango
                                             'bpm'  144.233
                                    'search_title'  'it':1 'tango':2
                                   'search_artist'  'anderson':2 'laurie':1
                                  'search_release'  'big':1 'science':2
                                     'search_rest'  '00poprockelectronic':1 '2':11 'anderson':8 'files':5,6 'it':9 'laurie':7 'loose':3,4 'rock':13 'tango':10 'tango2':12 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 '2':17 'anderson':4B,14 'big':5C 'files':11,12 'it':1A,15 'laurie':3B,13 'loose':9,10 'rock':19 'science':6C 'tango':2A,16 'tango2':18 'unsorted':8
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'female vocalists', 'avant garde', 'spoken word', 'experimental']
                                        'tag_date'  1982
                                     'discogstags'  ['electronic', 'rock', 'avantgarde', 'experimental']

============================== file details ==============================
                                           'mtime'  1620392399.9340627  (2021-05-07 14:59:59)
                             'size'  2881130