======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '251'
                                          'artist'  'Aventura'
                                     'text_people'  ''
                                         'release'  'We Broke The Rules'
                                           'title'  'Obsession'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['latino', 'latin', 'bachata', 'pop', 'spanish']"
                                     'discogstags'  "['latin', 'latin', 'bachata']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'loc-style-latin;set-pl-sced'
                                             'bpm'  '88.982'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:\x10!\x00\x00'                   PRIV(owner='AverageLevel', data=b'\x10!\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\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)                     'We Broke The Rules'
'TBPM' (BPM (beats per minute))                     '88.982'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-latin', 'set-pl-sced']
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Obsession'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Aventura'
'TPE2' (Band/orchestra/accompaniment)               'Aventura'
'TRCK' (Track number/Position in set)               '1'
'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'                                  ['latin', 'latin', 'bachata']
'TXXX:lastfmtags'                                   ['latino', 'latin', 'bachata', 'pop', 'spanish']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.31 dB'
'TXXX:replaygain_track_peak'                        '0.362574'

========================== row from database ==========================
                                              'id'  354501
                                            'path'  /data/Music/Bulk/00localcharacter/Aventura/[2002] We Broke The Rules/01 Obsession.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  251
                                           'genre'  loc-style-latin;set-pl-sced
                                        'filesize'  6055950
                                           'mtime'  1620522958
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter [2002] 01 loc style latin;set pl sced
                                      'tag_artist'  Aventura
                                     'tag_release'  We Broke The Rules
                                       'tag_title'  Obsession
                                             'bpm'  88.982
                                    'search_title'  'obsession':1
                                   'search_artist'  'aventura':1
                                  'search_release'  'broke':2 'rules':4 'the':3 'we':1
                                     'search_rest'  '2002':1,2 'latin':5,7 'loc':3 'pl':9 'sced':10 'set':6,8 'style':4
                                    'search_combo'  '2002':7,8 'aventura':2B 'broke':4C 'latin':11,13 'loc':9 'obsession':1A 'pl':15 'rules':6C 'sced':16 'set':12,14 'style':10 'the':5C 'we':3C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['latino', 'latin', 'bachata', 'pop', 'spanish']
                                        'tag_date'  2002
                                     'discogstags'  ['latin', 'latin', 'bachata']

============================== file details ==============================
                                           'mtime'  1620522957.8927584  (2021-05-09 03:15:57)
                             'size'  6055950