======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '182'
                                          'artist'  'Kyuss'
                                     'text_people'  'Josh Homme/John Garcia/Brant Bjork/Chris Cockrell'
                                         'release'  'Sons of Kyuss'
                                           'title'  'Katzenjammer'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['stoner rock', 'stoner metal', 'rock', 'desert rock', 'stoner']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'rock-gr-stoner'
                                             'bpm'  '136.828'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'8\x00+\x009\x006\x00+\x005\x009\x00D\x00A\x00+\x00A\x008\x00F\x005\x00+\x00E\x001\x004\x007\x00+\x001\x002\x001\x003\x004\x00+\x001\x005\x00A\x009\x006\x00+\x001\x008\x00B\x009\x00A\x00+\x001\x00C\x00F\x00A\x00E\x00+\x002\x000\x005\x001\x009\x00\x00\x00')
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=255, count=0)
'PRIV:AverageLevel:{\x1c\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x1c\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:U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00'  PRIV(owner='WM/Provider', data=b'U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/WMCollectionID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMCollectionID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/WMContentID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMContentID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Sons of Kyuss'
'TBPM' (BPM (beats per minute))                     '136.828'
'TCOM' (Composer)                                   'Josh Homme/John Garcia/Brant Bjork/Chris Cockrell'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-stoner'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Katzenjammer'
'TKEY' (Initial key)                                '3B'
'TLEN' (Length)                                     '182320'
'TPE1' (Lead performer(s)/Soloist(s))               'Kyuss'
'TPE2' (Band/orchestra/accompaniment)               'Kyuss'
'TPUB' (Publisher)                                  'Black Highway Magic'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '2'
'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'                                   ['stoner rock', 'stoner metal', 'rock', 'desert rock', 'stoner']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.95 dB'
'TXXX:replaygain_track_peak'                        '0.516336'

========================== row from database ==========================
                                              'id'  1352113
                                            'path'  /data/Music/Bulk/00poprockelectronic/Kyuss/Sons of Kyuss/08 katzenjammer.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  182
                                           'genre'  rock-gr-stoner
                                        'filesize'  7290428
                                           'mtime'  1636917985
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 08 katzenjammer rock gr stoner
                                      'tag_artist'  Kyuss
                                     'tag_release'  Sons of Kyuss
                                       'tag_title'  Katzenjammer
                                             'bpm'  136.828
                                    'search_title'  'katzenjammer':1
                                   'search_artist'  'kyuss':1
                                  'search_release'  'kyuss':3 'of':2 'sons':1
                                     'search_rest'  '00poprockelectronic':1 'gr':4 'katzenjammer':2 'rock':3 'stoner':5
                                    'search_combo'  '00poprockelectronic':6 'gr':9 'katzenjammer':1A,7 'kyuss':2B,5C 'of':4C 'rock':8 'sons':3C 'stoner':10
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['stoner rock', 'stoner metal', 'rock', 'desert rock', 'stoner']
                                        'tag_date'  1990
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636917984.7354121  (2021-11-14 20:26:24)
                             'size'  7290428