======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '222'
                                          'artist'  'Keren Ann'
                                     'text_people'  ''
                                         'release'  'La Biographie de L. Philipsen'
                                           'title'  'On Est Loin'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['indie', 'chanson francaise', 'female vocalists', 'french', 'singer "
 "songwriter']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '112.196'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:t\x14\x00\x00'                   PRIV(owner='AverageLevel', data=b't\x14\x00\x00')
'PRIV:PeakValue:þ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xfe\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')
'TALB' (Album/Movie/Show title)                     'La Biographie de L. Philipsen'
'TBPM' (BPM (beats per minute))                     '112.196'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'On Est Loin'
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '222563'
'TPE1' (Lead performer(s)/Soloist(s))               'Keren Ann'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie',
 'chanson francaise',
 'female vocalists',
 'french',
 'singer songwriter']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.38 dB'
'TXXX:replaygain_track_peak'                        '0.501945'

========================== row from database ==========================
                                              'id'  1247134
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Keren Ann/La Biographie De Luka Philipsen/04 - on est loin.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  222
                                           'genre'  ifs-songwriter
                                        'filesize'  5351763
                                           'mtime'  1621630292
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos De Luka 04 on est loin ifs songwriter
                                      'tag_artist'  Keren Ann
                                     'tag_release'  La Biographie de L. Philipsen
                                       'tag_title'  On Est Loin
                                             'bpm'  112.196
                                    'search_title'  'est':2 'loin':3 'on':1
                                   'search_artist'  'ann':2 'keren':1
                                  'search_release'  'biographie':2 'de':3 'l':4,5 'la':1 'philipsen':6
                                     'search_rest'  '00singer':1 'de':4 'eos':3 'est':7 'ifs':9 'loin':8 'luka':5 'on':6 'songwriter':2
                                    'search_combo'  '00singer':12 'ann':5B 'biographie':7C 'de':8C,15 'eos':14 'est':2A,18 'ifs':20 'keren':4B 'l':9C,10C 'la':6C 'loin':3A,19 'luka':16 'on':1A,17 'philipsen':11C 'songwriter':13
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'chanson francaise', 'female vocalists', 'french', 'singer songwriter']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630291.954722  (2021-05-21 22:51:31)
                             'size'  5351763