<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '165'
                                          'artist'  'The Beatles'
                                     'text_people'  ''
                                         'release'  'Magical Mystery Tour'
                                           'title'  'Magical Mystery Tour'
                                           '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-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['pop', 'rock', '60s', 'british', 'classic rock']"
                                     'discogstags'  "['rock', 'stage &amp; screen', 'soundtrack', 'pop rock', 'psychedelic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '11'
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '84.5'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382da6a0>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1532270"/>
'TALB' (Album/Movie/Show title)                     'Magical Mystery Tour'
'TBPM' (BPM (beats per minute))                     '84.5'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDOR' (Original release time)                      '1967'
'TDRC' (Recording time)                             '1967-12-08'
'TIPL' (Involved people list)                       TIPL(encoding=&lt;Encoding.UTF16: 1&gt;, people=[['producer', 'George Martin']])
'TIT2' (Title/songname/content description)         'Magical Mystery Tour'
'TKEY' (Initial key)                                '8A'
'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)                                  'Parlophone'
'TRCK' (Track number/Position in set)               '1/11'
'TSO2'                                              'Beatles, The'
'TSOP' (Performer sort order)                       'Beatles, The'
'TSRC' (ISRC (international standard recording code))  'GBAYE0601633/GBAYE6700020'
'TXXX:Artists'                                      'The Beatles'
'TXXX:CATALOGNUMBER'                                'SMMT 1-2'
'TXXX:MusicBrainz Album Artist Id'                  'b10bbbfc-cf9e-42e0-be17-e2c3e1d2600d'
'TXXX:MusicBrainz Album Id'                         '7020c3ca-ef65-3785-bc2a-88a4d85c2005'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/soundtrack'
'TXXX:MusicBrainz Artist Id'                        'b10bbbfc-cf9e-42e0-be17-e2c3e1d2600d'
'TXXX:MusicBrainz Release Group Id'                 '6e514645-fbee-34ac-97e0-c2120a4a5644'
'TXXX:MusicBrainz Release Track Id'                 '6f139ad4-08cb-38d7-8a3f-6ec93181ac08'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'stage &amp; screen', 'soundtrack', 'pop rock', 'psychedelic rock']
'TXXX:lastfmtags'                                   ['pop', 'rock', '60s', 'british', 'classic rock']
'TXXX:originalyear'                                 '1967'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.516882'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'09c89a4b-248c-4f98-ac3e-860f8e95dcd9')

========================== row from database ==========================
                                              'id'  1532270
                                            'path'  /data/Music/Bulk/00poprockelectronic/Beatles/_67-magical mystery tour/The Beatles - Magical Mystery Tour.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  165
                                           'genre'  rock-cppex-classic
                                        'filesize'  2785976
                                           'mtime'  1636039061
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic _67 magical mystery tour rock cppex classic
                                      'tag_artist'  The Beatles
                                     'tag_release'  Magical Mystery Tour
                                       'tag_title'  Magical Mystery Tour
                                             'bpm'  84.5
                                    'search_title'  'magical':1 'mystery':2 'tour':3
                                   'search_artist'  'beatles':2 'the':1
                                  'search_release'  'magical':1 'mystery':2 'tour':3
                                     'search_rest'  '00poprockelectronic':1 '67':2 'classic':8 'cppex':7 'magical':3 'mystery':4 'rock':6 'tour':5
                                    'search_combo'  '00poprockelectronic':9 '67':10 'beatles':5B 'classic':16 'cppex':15 'magical':1A,6C,11 'mystery':2A,7C,12 'rock':14 'the':4B 'tour':3A,8C,13
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  8A
                                           '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-3', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'rock', '60s', 'british', 'classic rock']
                                        'tag_date'  1967
                                     'discogstags'  ['rock', 'stage & screen', 'soundtrack', 'pop rock', 'psychedelic rock']

============================== file details ==============================
                                           'mtime'  1636039060.876357  (2021-11-04 16:17:40)
                             'size'  2785976