======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '178'
                                          'artist'  'The Cave Singers'
                                     'text_people'  ''
                                         'release'  'Welcome Joy'
                                           'title'  'VV'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-OLDST-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['bagel', 'lo fi', 'indie folk', 'americana', 'folk']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '10'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-americana'
                                             'bpm'  '99.763'
                                             'key'  '9B'
                                        'acoustid'  '3ddfdb8e-66a4-47c4-a347-db6e8fd43983'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'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')
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'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x006\x002\x002\x008\x003\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x009\x007\x001\x007\x000\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x008\x007\x006\x002\x002\x009\x002\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x006\x002\x002\x008\x003\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x009\x007\x001\x007\x000\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x008\x007\x006\x002\x002\x009\x002\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:Ú\x80\x12¥î\xa0(L\x9a±ÏIG\x98Í\x9e'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xda\x80\x12\xa5\xee\xa0(L\x9a\xb1\xcfIG\x98\xcd\x9e')
'PRIV:WM/WMCollectionID:Ú\x80\x12¥î\xa0(L\x9a±ÏIG\x98Í\x9e'  PRIV(owner='WM/WMCollectionID', data=b'\xda\x80\x12\xa5\xee\xa0(L\x9a\xb1\xcfIG\x98\xcd\x9e')
'PRIV:WM/WMContentID:ê\x00\x0f&>¡rM\x96æv\x85¡Íaí'  PRIV(owner='WM/WMContentID', data=b'\xea\x00\x0f&>\xa1rM\x96\xe6v\x85\xa1\xcda\xed')
'TALB' (Album/Movie/Show title)                     'Welcome Joy'
'TBPM' (BPM (beats per minute))                     '99.763'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-americana'
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009-08-17'
'TIT2' (Title/songname/content description)         'VV'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Cave Singers'
'TPE2' (Band/orchestra/accompaniment)               'The Cave Singers'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Matador'
'TRCK' (Track number/Position in set)               '7/10'
'TSO2'                                              'Cave Singers, The'
'TSOP' (Performer sort order)                       'Cave Singers, The'
'TXXX:ASIN'                                         'B002DESIEQ'
'TXXX:Acoustid Id'                                  '3ddfdb8e-66a4-47c4-a347-db6e8fd43983'
'TXXX:CATALOGNUMBER'                                'OLE8422'
'TXXX:MusicBrainz Album Artist Id'                  'bc07a2b3-807a-4dda-9c19-003553f18f45'
'TXXX:MusicBrainz Album Id'                         'b344ad9c-90e6-49f0-a9f8-fffe8484f3a8'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'bc07a2b3-807a-4dda-9c19-003553f18f45'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['bagel', 'lo fi', 'indie folk', 'americana', 'folk']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.53 dB'
'TXXX:replaygain_track_peak'                        '0.512225'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a656ad28-da3f-460c-a833-a38c472911f8')

========================== row from database ==========================
                                              'id'  1354198
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Welcome Joy (Premiere)/07 Vv.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  178
                                           'genre'  ifs-songwriter-americana
                                        'filesize'  7196133
                                           'mtime'  1623430121
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock (Premiere) 07 Vv ifs songwriter americana
                                      'tag_artist'  The Cave Singers
                                     'tag_release'  Welcome Joy
                                       'tag_title'  VV
                                             'bpm'  99.763
                                    'search_title'  'vv':1
                                   'search_artist'  'cave':2 'singers':3 'the':1
                                  'search_release'  'joy':2 'welcome':1
                                     'search_rest'  '00poprockelectronic':1 'americana':9 'ifs':7 'indierock':3 'poprock':2 'premiere':4,5 'songwriter':8 'vv':6
                                    'search_combo'  '00poprockelectronic':7 'americana':15 'cave':3B 'ifs':13 'indierock':9 'joy':6C 'poprock':8 'premiere':10,11 'singers':4B 'songwriter':14 'the':2B 'vv':1A,12 'welcome':5C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['bagel', 'lo fi', 'indie folk', 'americana', 'folk']
                                        'tag_date'  2009
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1623430120.9419522  (2021-06-11 18:48:40)
                             'size'  7196133