======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '286'
                                          'artist'  'Skunk Anansie'
                                     'text_people'  'Ace/Cass Lewis/M. Richardson/Skin'
                                         'release'  'Charlie Big Potato'
                                           'title'  'Charlie Big Potato'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'female vocalists', 'british', 'rock']"
                                     'discogstags'  "['electronic', 'rock', 'hard rock', 'industrial']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '105.203'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'3\x00+\x009\x006\x00+\x005\x004\x009\x004\x00+\x00A\x00F\x00E\x008\x00+\x00F\x00B\x002\x009\x00\x00\x00')
'PRIV:AverageLevel:{$\x00\x00'                      PRIV(owner='AverageLevel', data=b'{$\x00\x00')
'PRIV:PeakValue:¡|\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1|\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 \x004\x001\x003\x005\x000\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x001\x006\x005\x004\x005\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x007\x007\x005\x001\x005\x009\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x004\x001\x003\x005\x000\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x001\x006\x005\x004\x005\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x007\x007\x005\x001\x005\x009\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:RoJx¯Ú±J\x9bxC\x1ftË\x19\x06'  PRIV(owner='WM/WMCollectionGroupID', data=b'RoJx\xaf\xda\xb1J\x9bxC\x1ft\xcb\x19\x06')
'PRIV:WM/WMCollectionID:RoJx¯Ú±J\x9bxC\x1ftË\x19\x06'  PRIV(owner='WM/WMCollectionID', data=b'RoJx\xaf\xda\xb1J\x9bxC\x1ft\xcb\x19\x06')
'PRIV:WM/WMContentID:\x8d ýþù\x1b×M\x96*\x18Ú$§f´'  PRIV(owner='WM/WMContentID', data=b'\x8d \xfd\xfe\xf9\x1b\xd7M\x96*\x18\xda$\xa7f\xb4')
'TALB' (Album/Movie/Show title)                     'Charlie Big Potato'
'TBPM' (BPM (beats per minute))                     '105.203'
'TCOM' (Composer)                                   'Ace/Cass Lewis/M. Richardson/Skin'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Charlie Big Potato'
'TKEY' (Initial key)                                '12A'
'TLEN' (Length)                                     '286693'
'TPE1' (Lead performer(s)/Soloist(s))               'Skunk Anansie'
'TPE2' (Band/orchestra/accompaniment)               'Skunk Anansie'
'TPUB' (Publisher)                                  'Virgin'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'rock', 'hard rock', 'industrial']
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'female vocalists', 'british', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'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'                        '+0.94 dB'
'TXXX:replaygain_track_peak'                        '0.359844'

========================== row from database ==========================
                                              'id'  1292943
                                            'path'  /data/Music/Bulk/00poprockelectronic/Skunk Anansie/Charlie Big Potato (1999)/01 Charlie Big Potato.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  286
                                           'genre'  eid-metal
                                        'filesize'  11461208
                                           'mtime'  1620301791
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic (1999) 01 eid metal
                                      'tag_artist'  Skunk Anansie
                                     'tag_release'  Charlie Big Potato
                                       'tag_title'  Charlie Big Potato
                                             'bpm'  105.203
                                    'search_title'  'big':2 'charlie':1 'potato':3
                                   'search_artist'  'anansie':2 'skunk':1
                                  'search_release'  'big':2 'charlie':1 'potato':3
                                     'search_rest'  '00poprockelectronic':1 '1999':2,3 'eid':4 'metal':5
                                    'search_combo'  '00poprockelectronic':9 '1999':10,11 'anansie':5B 'big':2A,7C 'charlie':1A,6C 'eid':12 'metal':13 'potato':3A,8C 'skunk':4B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  12A
                                           '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-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'female vocalists', 'british', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic', 'rock', 'hard rock', 'industrial']

============================== file details ==============================
                                           'mtime'  1620301791.263199  (2021-05-06 13:49:51)
                             'size'  11461208