======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '253'
                                          'artist'  'Tub Ring'
                                     'text_people'  ''
                                         'release'  'The Great Filter'
                                           'title'  'Killers in Love'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'punk', 'metal', 'rock', 'alternative', 'experimental']"
                                     'discogstags'  ("['electronic', 'jazz', 'rock', 'funk / soul', 'blues', 'classical', 'prog "
 "rock', 'abstract', 'avantgarde', 'disco', 'electro', 'experimental']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '90.010'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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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'          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 \x001\x000\x004\x001\x007\x000\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x008\x002\x000\x002\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x000\x005\x000\x007\x001\x003\x006\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x000\x004\x001\x007\x000\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x008\x002\x000\x002\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x000\x005\x000\x007\x001\x003\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:²@ûÜ\x9ck¸B\x84\x05~í;\x1a©['  PRIV(owner='WM/WMCollectionGroupID', data=b'\xb2@\xfb\xdc\x9ck\xb8B\x84\x05~\xed;\x1a\xa9[')
'PRIV:WM/WMCollectionID:²@ûÜ\x9ck¸B\x84\x05~í;\x1a©['  PRIV(owner='WM/WMCollectionID', data=b'\xb2@\xfb\xdc\x9ck\xb8B\x84\x05~\xed;\x1a\xa9[')
'PRIV:WM/WMContentID:/×ØXÎ¥é@\x91x)\x1d\x04>¤Q'     PRIV(owner='WM/WMContentID', data=b'/\xd7\xd8X\xce\xa5\xe9@\x91x)\x1d\x04>\xa4Q')
'TALB' (Album/Movie/Show title)                     'The Great Filter'
'TBPM' (BPM (beats per minute))                     '90.010'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Killers in Love'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '253653'
'TPE1' (Lead performer(s)/Soloist(s))               'Tub Ring'
'TPE2' (Band/orchestra/accompaniment)               'Tub Ring'
'TPUB' (Publisher)                                  'The End'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic',
 'jazz',
 'rock',
 'funk / soul',
 'blues',
 'classical',
 'prog rock',
 'abstract',
 'avantgarde',
 'disco',
 'electro',
 'experimental']
'TXXX:lastfmtags'                                   ['alternative rock', 'punk', 'metal', 'rock', 'alternative', 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.38 dB'
'TXXX:replaygain_track_peak'                        '0.326204'

========================== row from database ==========================
                                              'id'  1420887
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Tub Ring/Tub Ring The Great Filter 06 Killers in Love.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  253
                                           'genre'  rock-gr-punk
                                        'filesize'  8111367
                                           'mtime'  1622659221
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner 06 rock gr punk
                                      'tag_artist'  Tub Ring
                                     'tag_release'  The Great Filter
                                       'tag_title'  Killers in Love
                                             'bpm'  90.01
                                    'search_title'  'in':2 'killers':1 'love':3
                                   'search_artist'  'ring':2 'tub':1
                                  'search_release'  'filter':3 'great':2 'the':1
                                     'search_rest'  'garage':2 'gr':6 'punk':1 'rock':5 'stoner':4 'surf':3
                                    'search_combo'  'filter':8C 'garage':10 'gr':14 'great':7C 'in':2A 'killers':1A 'love':3A 'punk':9 'ring':5B 'rock':13 'stoner':12 'surf':11 'the':6C 'tub':4B
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['alternative rock', 'punk', 'metal', 'rock', 'alternative', 'experimental']
                                        'tag_date'  2007
                                     'discogstags'  ['electronic', 'jazz', 'rock', 'funk / soul', 'blues', 'classical', 'prog rock', 'abstract', 'avantgarde', 'disco', 'electro', 'experimental']

============================== file details ==============================
                                           'mtime'  1622659221.1942892  (2021-06-02 20:40:21)
                             'size'  8111367