======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '135'
                                          'artist'  'The Beatles'
                                     'text_people'  ''
                                         'release'  'Revolver'
                                           'title'  'Dr. Robert'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['pop', 'rock', '60s', 'british', 'classic rock']"
                                     'discogstags'  "['rock', 'pop', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '14'
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '110.724'
                                             'key'  '11A'
                                        'acoustid'  'a4f779ee-83d6-4cc1-b536-8d28610276ac'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Revolver'
'TBPM' (BPM (beats per minute))                     '110.724'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDOR' (Original release time)                      '1966'
'TDRC' (Recording time)                             '1966'
'TIT2' (Title/songname/content description)         'Dr. Robert'
'TKEY' (Initial key)                                '11A'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'The Beatles'
'TPE2' (Band/orchestra/accompaniment)               'The Beatles'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Odeon'
'TRCK' (Track number/Position in set)               '11/14'
'TSO2'                                              'Beatles, The'
'TSOP' (Performer sort order)                       'Beatles, The'
'TXXX:Acoustid Id'                                  'a4f779ee-83d6-4cc1-b536-8d28610276ac'
'TXXX:Artists'                                      'The Beatles'
'TXXX:CATALOGNUMBER'                                'SMO 74 161'
'TXXX:MusicBrainz Album Artist Id'                  'b10bbbfc-cf9e-42e0-be17-e2c3e1d2600d'
'TXXX:MusicBrainz Album Id'                         'f65afc04-4956-4218-b6cd-65b80664142d'
'TXXX:MusicBrainz Album Release Country'            'CH'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'b10bbbfc-cf9e-42e0-be17-e2c3e1d2600d'
'TXXX:MusicBrainz Release Group Id'                 '72d15666-99a7-321e-b1f3-a3f8c09dff9f'
'TXXX:MusicBrainz Release Track Id'                 '7939b4bd-0f9d-4161-a611-356a977bc3b4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'pop', 'pop rock']
'TXXX:lastfmtags'                                   ['pop', 'rock', '60s', 'british', 'classic rock']
'TXXX:originalyear'                                 '1966'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'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'                        '+0.34 dB'
'TXXX:replaygain_track_peak'                        '0.950355'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'800edaba-c052-4e3c-b738-2acdaabd2542')
'USLT::XXX'                                         ('Beatles, The\n'
 'Revolver\n'
 'Dr. Robert\n'
 "Ring my friend I said you'd call Doctor Robert\n"
 "Day or night he'll be there anytime at all, Doctor Robert\n"
 "Doctor Robert, you're a new and better man\n"
 'He helps you to understand\n'
 'He does everything he can, Doctor Robert\n'
 "If you are down he'll pick you up, Doctor Robert\n"
 'Take a drink from his special cup, Doctor Robert\n'
 "Doctor Robert, he's a man you must believe\n"
 'Helping anyone in need\n'
 'No one can succeed like Doctor Robert\n'
 "Well, well, well you're feeling fine\n"
 "Well, well, well he'll make you, Doctor Robert\n"
 'My friend works for the National Health, Doctor Robert\n'
 "Don't pay money just to see yourself with Doctor Robert\n"
 "Doctor Robert, you're a new and better man\n"
 'He helps you to understand\n'
 'He does everything he can, Bob Robert\n'
 "Well, well, well you're feeling fine\n"
 "Well, well, well he'll make you, Doctor Robert\n"
 "Ring my friend I said you'd call Doctor Robert\n"
 "Ring my friend I said you'd call Bob Robert\n"
 'Doctor Robert')

========================== row from database ==========================
                                              'id'  1523452
                                            'path'  /data/Music/Bulk/00poprockelectronic/Beatles/_66-revolver/The Beatles - Doctor Robert.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  135
                                           'genre'  rock-cppex-classic
                                        'filesize'  2711709
                                           'mtime'  1636039055
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic _66 revolver Doctor rock cppex classic
                                      'tag_artist'  The Beatles
                                     'tag_release'  Revolver
                                       'tag_title'  Dr. Robert
                                             'bpm'  110.724
                                    'search_title'  'dr':1,2 'robert':3
                                   'search_artist'  'beatles':2 'the':1
                                  'search_release'  'revolver':1
                                     'search_rest'  '00poprockelectronic':1 '66':2 'classic':7 'cppex':6 'doctor':4 'revolver':3 'rock':5
                                    'search_combo'  '00poprockelectronic':7 '66':8 'beatles':5B 'classic':13 'cppex':12 'doctor':10 'dr':1A,2A 'revolver':6C,9 'robert':3A 'rock':11 'the':4B
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'rock', '60s', 'british', 'classic rock']
                                        'tag_date'  1966
                                     'discogstags'  ['rock', 'pop', 'pop rock']

============================== file details ==============================
                                           'mtime'  1636039055.3264217  (2021-11-04 16:17:35)
                             'size'  2711709