======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '305'
                                          'artist'  'Kaly Live Dub'
                                     'text_people'  ''
                                         'release'  'Fragments'
                                           'title'  'Broken Atom'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dub', 'electro', 'electronic', 'french', 'electro dub']"
                                     'discogstags'  "['reggae', 'dub']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-modern'
                                             'bpm'  '125.0'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'B\x00+\x009\x006\x00+\x005\x00D\x006\x004\x00+\x00B\x006\x00F\x006\x00+\x001\x001\x00A\x003\x00A\x00+\x001\x007\x00D\x00E\x004\x00+\x001\x009\x007\x008\x001\x00+\x001\x00F\x003\x00E\x008\x00+\x002\x004\x00E\x00F\x002\x00+\x002\x00B\x006\x00E\x009\x00+\x003\x001\x006\x006\x000\x00+\x003\x008\x00A\x006\x007\x00+\x004\x003\x002\x00E\x00C\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 \x001\x003\x009\x007\x004\x000\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x007\x007\x005\x001\x007\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x004\x003\x003\x004\x003\x000\x006\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x003\x009\x007\x004\x000\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x007\x007\x005\x001\x007\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x004\x003\x003\x004\x003\x000\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:/ÒÖé¯\x02üO©÷\x94¥h¥\x92\x04'  PRIV(owner='WM/WMCollectionGroupID', data=b'/\xd2\xd6\xe9\xaf\x02\xfcO\xa9\xf7\x94\xa5h\xa5\x92\x04')
'PRIV:WM/WMCollectionID:/ÒÖé¯\x02üO©÷\x94¥h¥\x92\x04'  PRIV(owner='WM/WMCollectionID', data=b'/\xd2\xd6\xe9\xaf\x02\xfcO\xa9\xf7\x94\xa5h\xa5\x92\x04')
'PRIV:WM/WMContentID:ER\x16â¨\x0fîM\x96L*?¼\x16H·'  PRIV(owner='WM/WMContentID', data=b'ER\x16\xe2\xa8\x0f\xeeM\x96L*?\xbc\x16H\xb7')
'TALB' (Album/Movie/Show title)                     'Fragments'
'TBPM' (BPM (beats per minute))                     '125.0'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-modern'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Broken Atom'
'TKEY' (Initial key)                                '12A'
'TLEN' (Length)                                     '305733'
'TPE1' (Lead performer(s)/Soloist(s))               'Kaly Live Dub'
'TPE2' (Band/orchestra/accompaniment)               'Kaly Live Dub'
'TPUB' (Publisher)                                  'Dub Dragon'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['reggae', 'dub']
'TXXX:lastfmtags'                                   ['dub', 'electro', 'electronic', 'french', 'electro dub']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.359711'

========================== row from database ==========================
                                              'id'  1382028
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/Kaly Live Dub - Fragments/02-broken atom.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  305
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-modern
                                        'filesize'  9789449
                                           'mtime'  1620521655
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub 02 broken atom loc style reggae or dub or ska or dancehall dub modern
                                      'tag_artist'  Kaly Live Dub
                                     'tag_release'  Fragments
                                       'tag_title'  Broken Atom
                                             'bpm'  125.0
                                    'search_title'  'atom':2 'broken':1
                                   'search_artist'  'dub':3 'kaly':1 'live':2
                                  'search_release'  'fragments':1
                                     'search_rest'  '00reggae':1 'atom':4 'broken':3 'dancehall':10 'dub':2 'loc':5 'modern':11 'or':8 'reggae':7 'ska':9 'style':6
                                    'search_combo'  '00reggae':7 'atom':2A,10 'broken':1A,9 'dancehall':16 'dub':5B,8 'fragments':6C 'kaly':3B 'live':4B 'loc':11 'modern':17 'or':14 'reggae':13 'ska':15 'style':12
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dub', 'electro', 'electronic', 'french', 'electro dub']
                                        'tag_date'  2008
                                     'discogstags'  ['reggae', 'dub']

============================== file details ==============================
                                           'mtime'  1620521655.4659274  (2021-05-09 02:54:15)
                             'size'  9789449