<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '257.769'
                                        'duration'  '659'
                                          'artist'  'SUMAC'
                                     'text_people'  ''
                                         'release'  'What One Becomes'
                                           'title'  'Clutch of Oblivion'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
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 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
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                                      'lastfmtags'  "['sludge', 'sludge metal', 'post metal', 'experimental', 'progressive metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '5'
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'eid-metal-progressive'
                                             'bpm'  '116.924'
                                             'key'  '10A'
                                        'acoustid'  '399ac041-2cac-4c57-802b-f47d1df60a33'
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382f1a00>

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'TALB' (Album/Movie/Show title)                     'What One Becomes'
'TBPM' (BPM (beats per minute))                     '116.924'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-progressive'
'TDOR' (Original release time)                      '2016'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Clutch of Oblivion'
'TKEY' (Initial key)                                '10A'
'TLAN' (Language(s))                                'eng'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'SUMAC'
'TPE2' (Band/orchestra/accompaniment)               'SUMAC'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Thrill Jockey'
'TRCK' (Track number/Position in set)               '3/5'
'TSO2'                                              'Sumac'
'TSOP' (Performer sort order)                       'Sumac'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 3.97'
'TXXX:ASIN'                                         'B00W3H3XOI'
'TXXX:Acoustid Id'                                  '399ac041-2cac-4c57-802b-f47d1df60a33'
'TXXX:CATALOGID'                                    'THRILL 417'
'TXXX:CATALOGNUMBER'                                'THRILL 417'
'TXXX:DISCOGS_RELEASE_ID'                           '8556867'
'TXXX:MusicBrainz Album Artist Id'                  '9b98f3ed-d24a-479e-bd15-97c16de9f13f'
'TXXX:MusicBrainz Album Id'                         '538eb6de-0842-4775-b341-d9b6b9473658'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '9b98f3ed-d24a-479e-bd15-97c16de9f13f'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:Release type'                                 'Normal'
'TXXX:Rip date'                                     '2016-05-23'
'TXXX:Ripping tool'                                 'EAC'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:STYLE'                                        'Avantgarde, Sludge Metal'
'TXXX:Source'                                       'CD (LP)'
'TXXX:lastfmtags'                                   ['sludge', 'sludge metal', 'post metal', 'experimental', 'progressive metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.73 dB'
'TXXX:replaygain_track_peak'                        '0.440318'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'23d78c21-5875-4e7c-80d3-87926cc9f365')
'WXXX:'                                             WXXX(encoding=&lt;Encoding.UTF16: 1&gt;, desc='', url='https://www.discogs.com/Sumac-What-One-Becomes/release/8556867')

========================== row from database ==========================
                                              'id'  1399055
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Sumac - What One Becomes/03 - Clutch Of Oblivion.mp3
                                         'working'  None
                                         'bitrate'  257
                                    'duration_sec'  659
                                           'genre'  eid-metal-progressive
                                        'filesize'  21339660
                                           'mtime'  1620310889
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Sumac 03 Of eid metal progressive
                                      'tag_artist'  SUMAC
                                     'tag_release'  What One Becomes
                                       'tag_title'  Clutch of Oblivion
                                             'bpm'  116.924
                                    'search_title'  'clutch':1 'oblivion':3 'of':2
                                   'search_artist'  'sumac':1
                                  'search_release'  'becomes':3 'one':2 'what':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':5 'metal':6 'of':4 'progressive':7 'sumac':3
                                    'search_combo'  '00dwimp':8 '00metal':9 'becomes':7C 'clutch':1A 'eid':12 'metal':13 'oblivion':3A 'of':2A,11 'one':6C 'progressive':14 'sumac':4B,10 'what':5C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['sludge', 'sludge metal', 'post metal', 'experimental', 'progressive metal']
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620310888.5347722  (2021-05-06 16:21:28)
                             'size'  21339660