======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '297'
                                          'artist'  'Santana'
                                     'text_people'  ''
                                         'release'  'Supernatural'
                                           'title'  'Smooth'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'blues', 'classic rock', 'latin', 'rock']"
                                     'discogstags'  "['rock', 'blues rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '4'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'loc-style-latin;set-pl-billboard'
                                             'bpm'  '116'
                                             'key'  '4A'
                                        'acoustid'  '919ee5fc-9622-491d-9cba-1a62e7f0eb10'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Supernatural'
'TBPM' (BPM (beats per minute))                     '116'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-latin', 'set-pl-billboard']
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Smooth'
'TKEY' (Initial key)                                '4A'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Santana feat. Rob Thomas'
'TPE2' (Band/orchestra/accompaniment)               'Santana'
'TPOS' (Part of a set)                              '2/4'
'TPUB' (Publisher)                                  'Arista'
'TRCK' (Track number/Position in set)               '1/4'
'TSO2'                                              'Santana'
'TSOP' (Performer sort order)                       'Santana feat. Thomas, Rob'
'TSRC' (ISRC (international standard recording code))  'USAR19900033'
'TXXX:Acoustid Id'                                  '919ee5fc-9622-491d-9cba-1a62e7f0eb10'
'TXXX:Artists'                                      'Santana/Rob Thomas'
'TXXX:CATALOGNUMBER'                                '19080 1'
'TXXX:Mp3gain_minmax'                               '103,181'
'TXXX:Mp3gain_undo'                                 '+007,+007,N'
'TXXX:MusicBrainz Album Artist Id'                  '9a3bf45c-347d-4630-894d-7cf3e8e0b632'
'TXXX:MusicBrainz Album Id'                         '9e9afe29-b8f8-4f57-8ec0-14a52b1868fd'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '9a3bf45c-347d-4630-894d-7cf3e8e0b632/e42680f7-e439-4666-9c2c-536c2b3c6db3'
'TXXX:MusicBrainz Release Group Id'                 '70e23797-9da2-33bb-be6f-a85e7b581b69'
'TXXX:MusicBrainz Release Track Id'                 'f6be704f-d83c-448b-baf1-9d9127056e1e'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'blues rock', 'classic rock']
'TXXX:lastfmtags'                                   ['guitar', 'blues', 'classic rock', 'latin', 'rock']
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.01 dB'
'TXXX:replaygain_track_peak'                        '0.347174'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fd635cea-3510-4d4b-930d-9ed69f754685')

========================== row from database ==========================
                                              'id'  777920
                                            'path'  /data/Music/Bulk/00localcharacter/Latin/Santana/Supernatural/Santana & Rob Thomas - Smooth.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  297
                                           'genre'  loc-style-latin;set-pl-billboard
                                        'filesize'  6002212
                                           'mtime'  1620523413
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Latin & Rob Thomas loc style latin;set pl billboard
                                      'tag_artist'  Santana
                                     'tag_release'  Supernatural
                                       'tag_title'  Smooth
                                             'bpm'  116.0
                                    'search_title'  'smooth':1
                                   'search_artist'  'santana':1
                                  'search_release'  'supernatural':1
                                     'search_rest'  'billboard':11 'latin':1,6,8 'loc':4 'pl':10 'rob':2 'set':7,9 'style':5 'thomas':3
                                    'search_combo'  'billboard':14 'latin':4,9,11 'loc':7 'pl':13 'rob':5 'santana':2B 'set':10,12 'smooth':1A 'style':8 'supernatural':3C 'thomas':6
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['guitar', 'blues', 'classic rock', 'latin', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  ['rock', 'blues rock', 'classic rock']

============================== file details ==============================
                                           'mtime'  1620523413.2178023  (2021-05-09 03:23:33)
                             'size'  6002212