<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '157'
                                          'artist'  'Santana'
                                     'text_people'  ''
                                         'release'  'The Very Best of Santana'
                                           'title'  'Let the Children Play'
                                           '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-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['guitar', 'blues', 'classic rock', 'latin', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '19'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '145'
                                             'key'  '10B'
                                        'acoustid'  '5cafdd9e-9154-4763-b1ec-1c2cb4d09ddb'
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382da8b0>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1413016"/>
'COMM:CDDB Disc ID:XXX'                             '2011D713'
'COMM:ID3v1 Comment:XXX'                            '2011D713'
'TALB' (Album/Movie/Show title)                     'The Very Best of Santana'
'TBPM' (BPM (beats per minute))                     '145'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Let the Children Play'
'TKEY' (Initial key)                                '10B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Santana'
'TPE2' (Band/orchestra/accompaniment)               'Santana'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sony Music Entertainment (France) S.A.'
'TRCK' (Track number/Position in set)               '8/19'
'TSO2'                                              'Santana'
'TSOP' (Performer sort order)                       'Santana'
'TSRC' (ISRC (international standard recording code))  'USSM19902760'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, 192 Kbit/s, Joint Stereo, Normal quality'
'TXXX:Acoustid Id'                                  '5cafdd9e-9154-4763-b1ec-1c2cb4d09ddb'
'TXXX:Artists'                                      'Santana'
'TXXX:BARCODE'                                      '5099748508126'
'TXXX:CATALOGNUMBER'                                'VER 485081 2'
'TXXX:MusicBrainz Album Artist Id'                  '9a3bf45c-347d-4630-894d-7cf3e8e0b632'
'TXXX:MusicBrainz Album Id'                         'aafb73af-7c0c-4dc2-bf80-e921fe837eba'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '9a3bf45c-347d-4630-894d-7cf3e8e0b632'
'TXXX:MusicBrainz Release Group Id'                 '77254454-b663-394b-b887-a3094ef70d8d'
'TXXX:MusicBrainz Release Track Id'                 'e1ad069c-3425-4a83-8153-14657df5a25b'
'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:lastfmtags'                                   ['guitar', 'blues', 'classic rock', 'latin', 'rock']
'TXXX:originalyear'                                 '1996'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.37 dB'
'TXXX:replaygain_track_peak'                        '0.609412'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'b1e235a2-3d30-4395-84f5-b15788f6f2b1')

========================== row from database ==========================
                                              'id'  1413016
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Santana/The Very Best/Santana - 08 - Let The Children Play.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  157
                                           'genre'  rock-cppex-classic
                                        'filesize'  3891738
                                           'mtime'  1636038836
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 08 rock cppex classic
                                      'tag_artist'  Santana
                                     'tag_release'  The Very Best of Santana
                                       'tag_title'  Let the Children Play
                                             'bpm'  145.0
                                    'search_title'  'children':3 'let':1 'play':4 'the':2
                                   'search_artist'  'santana':1
                                  'search_release'  'best':3 'of':4 'santana':5 'the':1 'very':2
                                     'search_rest'  'classic':4 'classicprogpsy':1 'cppex':3 'rock':2
                                    'search_combo'  'best':8C 'children':3A 'classic':14 'classicprogpsy':11 'cppex':13 'let':1A 'of':9C 'play':4A 'rock':12 'santana':5B,10C 'the':2A,6C 'very':7C
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['guitar', 'blues', 'classic rock', 'latin', 'rock']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636038836.3469481  (2021-11-04 16:13:56)
                             'size'  3891738