======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '262'
                                          'artist'  'Heart'
                                     'text_people'  ''
                                         'release'  'Little Queen'
                                           'title'  'Barracuda'
                                           '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['hard rock', '80s', 'rock', 'female vocalists', 'classic rock']"
                                     'discogstags'  "['rock', 'folk rock', 'rock & roll']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '137.106'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Little Queen'
'TBPM' (BPM (beats per minute))                     '137.106'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '1977'
'TIT2' (Title/songname/content description)         'Barracuda'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Heart'
'TPE2' (Band/orchestra/accompaniment)               'Heart'
'TRCK' (Track number/Position in set)               '1'
'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', 'folk rock', 'rock & roll']
'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'                                      '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.46 dB'
'TXXX:replaygain_track_peak'                        '0.321596'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3N42S7300284V684F13ED734AD630E56945E65DA62C62A0P2')

========================== row from database ==========================
                                              'id'  1329001
                                            'path'  /data/Music/Bulk/00poprockelectronic/Heart/1977 - Little Queen/01 Heart - Barracuda.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  262
                                           'genre'  rock-cppex-classic
                                        'filesize'  10960290
                                           'mtime'  1636039187
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1977 01 rock cppex classic
                                      'tag_artist'  Heart
                                     'tag_release'  Little Queen
                                       'tag_title'  Barracuda
                                             'bpm'  137.106
                                    'search_title'  'barracuda':1
                                   'search_artist'  'heart':1
                                  'search_release'  'little':1 'queen':2
                                     'search_rest'  '00poprockelectronic':1 '1977':2 'classic':5 'cppex':4 'rock':3
                                    'search_combo'  '00poprockelectronic':5 '1977':6 'barracuda':1A 'classic':9 'cppex':8 'heart':2B 'little':3C 'queen':4C 'rock':7
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', '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'  1977
                                     'discogstags'  ['rock', 'folk rock', 'rock & roll']

============================== file details ==============================
                                           'mtime'  1636039187.0586882  (2021-11-04 16:19:47)
                             'size'  10960290