======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '235'
                                          'artist'  'Heart'
                                     'text_people'  'G. Davis - L. Diamond'
                                         'release'  'The Essential Heart'
                                           'title'  'Tell It Like It Is'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['hard rock', '80s', 'rock', 'female vocalists', 'classic rock']"
                                     'discogstags'  "['rock', 'aor', 'classic rock', 'hard rock', 'soft rock', 'arena rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic;set-pl-billboard'
                                             'bpm'  '136.920'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000FC3 00000F4D 00008DEB'
'COMM:iTunNORM:eng'                                 (' 00000FC3 00000F4D 00008DEB 000072C2 0002A905 0000AC0A 000086E8 00008523 '
 '00007F3E 0002B149')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A5C 00000000009E4294 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '18+38D39831603799E0609BA3B3FF17DD6C+3669851'
'TALB' (Album/Movie/Show title)                     'The Essential Heart'
'TBPM' (BPM (beats per minute))                     '136.920'
'TCOM' (Composer)                                   'G. Davis - L. Diamond'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-classic', 'set-pl-billboard']
'TDRC' (Recording time)                             '2002'
'TENC' (Encoded by)                                 'iTunes v6.0.4.2'
'TIT2' (Title/songname/content description)         'Tell It Like It Is'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Heart'
'TPE2' (Band/orchestra/accompaniment)               'Heart'
'TPOS' (Part of a set)                              '1'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'aor', 'classic rock', 'hard rock', 'soft rock', 'arena rock']
'TXXX:lastfmtags'                                   ['hard rock', '80s', 'rock', 'female vocalists', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.14 dB'
'TXXX:replaygain_track_peak'                        '0.458268'

========================== row from database ==========================
                                              'id'  1345203
                                            'path'  /data/Music/Bulk/00poprockelectronic/Heart/The Essential Heart/Disc 1/14 - Tell It Like It Is.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  235
                                           'genre'  rock-cppex-classic;set-pl-billboard
                                        'filesize'  5660925
                                           'mtime'  1636039221
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Disc 1 14 rock cppex classic;set pl billboard
                                      'tag_artist'  Heart
                                     'tag_release'  The Essential Heart
                                       'tag_title'  Tell It Like It Is
                                             'bpm'  136.92
                                    'search_title'  'is':4 'it':2 'like':3 'tell':1
                                   'search_artist'  'heart':1
                                  'search_release'  'essential':2 'heart':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 '1':3 'billboard':11 'classic':6,8 'cppex':5 'disc':2 'pl':10 'rock':4 'set':7,9
                                    'search_combo'  '00poprockelectronic':9 '1':11 'billboard':19 'classic':14,16 'cppex':13 'disc':10 'essential':7C 'heart':5B,8C 'is':4A 'it':2A 'like':3A 'pl':18 'rock':12 'set':15,17 'tell':1A 'the':6C
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['hard rock', '80s', 'rock', 'female vocalists', 'classic rock']
                                        'tag_date'  2002
                                     'discogstags'  ['rock', 'aor', 'classic rock', 'hard rock', 'soft rock', 'arena rock']

============================== file details ==============================
                                           'mtime'  1636039220.627198  (2021-11-04 16:20:20)
                             'size'  5660925