======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '231'
                                          'artist'  'Bewitched'
                                     'text_people'  ''
                                         'release'  'At the Gates of Hell'
                                           'title'  'Let the Blood Run Red'
                                           'quals'  ("['Q-HAP-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  ("['black metal', 'thrash metal', 'blackened thrash metal', 'black thrash "
 "metal', 'metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '10'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'eid-unsorted'
                                             'bpm'  '99.616'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'At the Gates of Hell'
'TBPM' (BPM (beats per minute))                     '99.616'
'TCON' (Content type, a.k.a. Genre)                 'eid-unsorted'
'TDRC' (Recording time)                             '1999-09-08'
'TIT2' (Title/songname/content description)         'Let the Blood Run Red'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Bewitched'
'TPE2' (Band/orchestra/accompaniment)               'Bewitched'
'TPUB' (Publisher)                                  'Osmose Productions'
'TRCK' (Track number/Position in set)               '6/10'
'TSOP' (Performer sort order)                       'Bewitched'
'TXXX:ALBUMARTISTSORT'                              'Bewitched'
'TXXX:ASIN'                                         'B000025AX1'
'TXXX:BARCODE'                                      '4001617209103'
'TXXX:CATALOGNUMBER'                                'OPCD 076'
'TXXX:MusicBrainz Album Artist Id'                  'b89fea43-81c3-456f-a002-313d994b4dd1'
'TXXX:MusicBrainz Album Id'                         '25af8df3-3c37-4ca2-a430-42b245070981'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'b89fea43-81c3-456f-a002-313d994b4dd1'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['black metal',
 'thrash metal',
 'blackened thrash metal',
 'black thrash metal',
 'metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-2.17 dB'
'TXXX:replaygain_track_peak'                        '0.455904'

========================== row from database ==========================
                                              'id'  1288683
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Bewitched - Let the Blood Run Red - At the Gates of Hell.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  231
                                           'genre'  eid-unsorted
                                        'filesize'  3712907
                                           'mtime'  1620521381
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] eid unsorted
                                      'tag_artist'  Bewitched
                                     'tag_release'  At the Gates of Hell
                                       'tag_title'  Let the Blood Run Red
                                             'bpm'  99.616
                                    'search_title'  'blood':3 'let':1 'red':5 'run':4 'the':2
                                   'search_artist'  'bewitched':1
                                  'search_release'  'at':1 'gates':3 'hell':5 'of':4 'the':2
                                     'search_rest'  '00poprockelectronic':1 'eid':7 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':12 'at':7C 'bewitched':6B 'blood':3A 'eid':18 'files':16,17 'gates':9C 'hell':11C 'let':1A 'loose':14,15 'of':10C 'red':5A 'run':4A 'the':2A,8C 'unsorted':13
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['black metal', 'thrash metal', 'blackened thrash metal', 'black thrash metal', 'metal']
                                        'tag_date'  1999
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620521380.7627811  (2021-05-09 02:49:40)
                             'size'  3712907