======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '299'
                                          'artist'  'Death Angel'
                                     'text_people'  'Death Angel/Rob Cavestany'
                                         'release'  'The Ultra-Violence'
                                           'title'  'Kill As One'
                                           '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', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['thrash', 'speed metal', 'thrash metal', 'metal', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'eid-metal-trash'
                                             'bpm'  '136.828'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Ultra-Violence'
'TBPM' (BPM (beats per minute))                     '136.828'
'TCOM' (Composer)                                   'Death Angel/Rob Cavestany'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-trash'
'TDRC' (Recording time)                             '1987'
'TENC' (Encoded by)                                 "HAIL ODIN'S MIGHTY BATTLEPENIS!"
'TIT2' (Title/songname/content description)         'Kill As One'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Death Angel'
'TPE2' (Band/orchestra/accompaniment)               'Death Angel'
'TPUB' (Publisher)                                  'Restless'
'TRCK' (Track number/Position in set)               '4'
'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:lastfmtags'                                   ['thrash', 'speed metal', 'thrash metal', 'metal', 'heavy metal']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.21 dB'
'TXXX:replaygain_track_peak'                        '0.546356'

========================== row from database ==========================
                                              'id'  1307004
                                            'path'  /data/Music/Bulk/00poprockelectronic/Death Angel/The ultra violence/04 - Death Angel - kill as one.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  299
                                           'genre'  eid-metal-trash
                                        'filesize'  7205398
                                           'mtime'  1620311704
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic ultra violence 04 kill as one eid metal trash
                                      'tag_artist'  Death Angel
                                     'tag_release'  The Ultra-Violence
                                       'tag_title'  Kill As One
                                             'bpm'  136.828
                                    'search_title'  'as':2 'kill':1 'one':3
                                   'search_artist'  'angel':2 'death':1
                                  'search_release'  'the':1 'ultra':2 'ultraviolence':4 'violence':3
                                     'search_rest'  '00poprockelectronic':1 'as':5 'eid':7 'kill':4 'metal':8 'one':6 'trash':9 'ultra':2 'violence':3
                                    'search_combo'  '00poprockelectronic':10 'angel':5B 'as':2A,14 'death':4B 'eid':16 'kill':1A,13 'metal':17 'one':3A,15 'the':6C 'trash':18 'ultra':7C,11 'ultraviolence':9C 'violence':8C,12
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', '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-2', 'q-grit-4']
                                      'lastfmtags'  ['thrash', 'speed metal', 'thrash metal', 'metal', 'heavy metal']
                                        'tag_date'  1987
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620311703.5555074  (2021-05-06 16:35:03)
                             'size'  7205398