======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '232'
                                          'artist'  'The Beatles'
                                     'text_people'  ''
                                         'release'  'Let It Be'
                                           'title'  'Let It Be'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-4', 'q-drums-2', 'q-other-3', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['pop', 'rock', '60s', 'british', 'classic rock']"
                                     'discogstags'  "['rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '12'
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '140'
                                             'key'  '4A'
                                        'acoustid'  '7620b3a0-0f47-4822-a4b8-e8b667356869'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Let It Be'
'TBPM' (BPM (beats per minute))                     '140'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDOR' (Original release time)                      '1970'
'TDRC' (Recording time)                             '1970-11-06'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Phil Spector']])
'TIT2' (Title/songname/content description)         'Let It Be'
'TKEY' (Initial key)                                '4A'
'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)                                  'Apple Records'
'TRCK' (Track number/Position in set)               '6/12'
'TSO2'                                              'Beatles, The'
'TSOP' (Performer sort order)                       'Beatles, The'
'TSRC' (ISRC (international standard recording code))  'GBAYE0601713'
'TXXX:Acoustid Id'                                  '7620b3a0-0f47-4822-a4b8-e8b667356869'
'TXXX:Artists'                                      'The Beatles'
'TXXX:CATALOGNUMBER'                                'PCS 7096'
'TXXX:MusicBrainz Album Artist Id'                  'b10bbbfc-cf9e-42e0-be17-e2c3e1d2600d'
'TXXX:MusicBrainz Album Id'                         '23f4c1d1-fd0e-3d56-ad43-4672e462e9fb'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'b10bbbfc-cf9e-42e0-be17-e2c3e1d2600d'
'TXXX:MusicBrainz Release Group Id'                 'bff544a7-56e0-3ed6-9e0f-3b676cca9111'
'TXXX:MusicBrainz Release Track Id'                 '6d6906fb-1e79-38d0-a6ee-54447ca96c5a'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'pop rock']
'TXXX:lastfmtags'                                   ['pop', 'rock', '60s', 'british', 'classic rock']
'TXXX:originalyear'                                 '1970'
'TXXX:q-bass'                                       '3'
'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-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.06 dB'
'TXXX:replaygain_track_peak'                        '0.468083'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'0cdc9b5b-b16b-4ff1-9f16-5b4ba76f1c17')
'USLT::XXX'                                         ('[Verse 1 (Lead vocals: Paul McCartney)]\n'
 'When I find myself in times of trouble\n'
 'Mother Mary comes to me\n'
 'Speaking words of wisdom\n'
 '"Let it be"\n'
 'And in my hour of darkness\n'
 'She is standing right in front of me\n'
 'Speaking words of wisdom\n'
 '"Let it be"\n'
 '\n'
 '[Chorus]\n'
 'Let it be, let it be, let it be, let it be\n'
 'Whisper words of wisdom\n'
 'Let it be\n'
 '\n'
 '[Verse 2]\n'
 'And when the brokenhearted people\n'
 'Living in the world agree\n'
 'There will be an answer\n'
 'Let it be\n'
 'For though they may be parted\n'
 'There is still a chance that they will see\n'
 'There will be an answer\n'
 'Let it be\n'
 '\n'
 '[Chorus]\n'
 'Let it be, let it be, let it be, let it be\n'
 'Yeah there will be an answer\n'
 'Let it be\n'
 'Let it be, let it be, let it be, let it be\n'
 'Whisper words of wisdom\n'
 'Let it be\n'
 '\n'
 '[Instrumental]\n'
 '\n'
 '[Chorus]\n'
 'Let it be, let it be, let it be, yeah let it be\n'
 'Whisper words of wisdom\n'
 'Let it be\n'
 '\n'
 '[Verse 3: Paul McCartney]\n'
 'And when the night is cloudy\n'
 'There is still a light that shines on me\n'
 'Shine until tomorrow\n'
 'Let it be\n'
 'I wake up to the sound of music\n'
 'Mother Mary comes to me\n'
 'Speaking words of wisdom\n'
 'Let it be\n'
 '\n'
 '[Chorus]\n'
 'Let it be, let it be, let it be, yeah let it be\n'
 'There will be an answer\n'
 'Let it be\n'
 'Let it be, let it be, let it be, yeah let it be\n'
 'Whisper words of wisdom\n'
 'Let it be')

========================== row from database ==========================
                                              'id'  1523406
                                            'path'  /data/Music/Bulk/00poprockelectronic/Beatles/_70-let it be/The Beatles - Let it Be.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  232
                                           'genre'  rock-cppex-classic
                                        'filesize'  3790401
                                           'mtime'  1636039099
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic _70 let it be it rock cppex classic
                                      'tag_artist'  The Beatles
                                     'tag_release'  Let It Be
                                       'tag_title'  Let It Be
                                             'bpm'  140.0
                                    'search_title'  'be':3 'it':2 'let':1
                                   'search_artist'  'beatles':2 'the':1
                                  'search_release'  'be':3 'it':2 'let':1
                                     'search_rest'  '00poprockelectronic':1 '70':2 'be':5 'classic':8 'cppex':7 'it':4 'let':3 'rock':6
                                    'search_combo'  '00poprockelectronic':9 '70':10 'be':3A,8C,13 'beatles':5B 'classic':16 'cppex':15 'it':2A,7C,12 'let':1A,6C,11 'rock':14 'the':4B
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-3', '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-3', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'rock', '60s', 'british', 'classic rock']
                                        'tag_date'  1970
                                     'discogstags'  ['rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1636039099.1044602  (2021-11-04 16:18:19)
                             'size'  3790401