======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '191'
                                          'artist'  'Tori Amos'
                                     'text_people'  'Dave Grohl/Krist Novoselic/Kurt Cobain'
                                         'release'  'Between the Covers'
                                           'title'  'Smells Like Teen Spirit'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['female vocalists', 'singer-songwriter', 'alternative', 'piano', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '144.028'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000395 00000405 0000374E'
'COMM:iTunNORM:eng'                                 (' 00000395 00000405 0000374E 00003848 00024695 00024695 00008000 00008000 '
 '0002B3CA 0001884A')
'PRIV:AverageLevel:{\x12\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x12\x00\x00')
'PRIV:PeakValue:¡q\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1q\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 \x008\x005\x002\x004\x007\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x009\x001\x000\x006\x006\x005\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x008\x005\x002\x004\x007\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x009\x001\x000\x006\x006\x005\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:¸Ê6õO@ç@\x96eÇ\x1e\x05q 1'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xb8\xca6\xf5O@\xe7@\x96e\xc7\x1e\x05q 1')
'PRIV:WM/WMCollectionID:¸Ê6õO@ç@\x96eÇ\x1e\x05q 1'  PRIV(owner='WM/WMCollectionID', data=b'\xb8\xca6\xf5O@\xe7@\x96e\xc7\x1e\x05q 1')
'PRIV:WM/WMContentID:×eï,³E\x82I\x8c,\x90(¤\x04Xç'  PRIV(owner='WM/WMContentID', data=b'\xd7e\xef,\xb3E\x82I\x8c,\x90(\xa4\x04X\xe7')
'TALB' (Album/Movie/Show title)                     'Between the Covers'
'TBPM' (BPM (beats per minute))                     '144.028'
'TCOM' (Composer)                                   'Dave Grohl/Krist Novoselic/Kurt Cobain'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Smells Like Teen Spirit'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tori Amos'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Legacy'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['female vocalists', 'singer-songwriter', 'alternative', 'piano', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.49 dB'
'TXXX:replaygain_track_peak'                        '0.700384'

========================== row from database ==========================
                                              'id'  1300571
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/06 smells like teen spirit.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  191
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  3065420
                                           'mtime'  1638554938
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 06 smells like teen spirit ifs songwriter eos
                                      'tag_artist'  Tori Amos
                                     'tag_release'  Between the Covers
                                       'tag_title'  Smells Like Teen Spirit
                                             'bpm'  144.028
                                    'search_title'  'like':2 'smells':1 'spirit':4 'teen':3
                                   'search_artist'  'amos':2 'tori':1
                                  'search_release'  'between':1 'covers':3 'the':2
                                     'search_rest'  '00poprockelectronic':1 'eos':13 'files':5,6 'ifs':11 'like':8 'loose':3,4 'smells':7 'songwriter':12 'spirit':10 'teen':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':10 'amos':6B 'between':7C 'covers':9C 'eos':22 'files':14,15 'ifs':20 'like':2A,17 'loose':12,13 'smells':1A,16 'songwriter':21 'spirit':4A,19 'teen':3A,18 'the':8C 'tori':5B 'unsorted':11
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['female vocalists', 'singer-songwriter', 'alternative', 'piano', 'rock']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638554938.2604725  (2021-12-03 19:08:58)
                             'size'  3065420