<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '280.229'
                                        'duration'  '209'
                                          'artist'  'The Blood Brothers'
                                     'text_people'  ''
                                         'release'  'This Adultery is Ripe'
                                           'title'  'Doctor! Doctor!'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-4', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'post hardcore', 'hardcore', 'experimental', 'screamo']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '122.289'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382dad90>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=413041"/>
'COMM:ID3v1 Comment:XXX'                            ' 00000BFB 000015CD 00002D24'
'COMM:iTunNORM:eng'                                 (' 00000BFB 000015CD 00002D24 00003F9D 0002DEF5 0002DEF5 00007CE5 00007C8F '
 '0001843F 0001F7D1')
'TALB' (Album/Movie/Show title)                     'This Adultery is Ripe'
'TBPM' (BPM (beats per minute))                     '122.289'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Doctor! Doctor!'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Blood Brothers'
'TPE2' (Band/orchestra/accompaniment)               'The Blood Brothers'
'TRCK' (Track number/Position in set)               '02'
'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:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'post hardcore', 'hardcore', 'experimental', 'screamo']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '-1.21 dB'
'TXXX:replaygain_track_peak'                        '0.430854'

========================== row from database ==========================
                                              'id'  413041
                                            'path'  /data/Music/Bulk/00dwimp/The Blood Brothers/[2000] This Adultery is Ripe/02 Doctor! Doctor!.mp3
                                         'working'  None
                                         'bitrate'  280
                                    'duration_sec'  209
                                           'genre'  eid-metal
                                        'filesize'  7365153
                                           'mtime'  1620301613
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp [2000] 02 eid metal
                                      'tag_artist'  The Blood Brothers
                                     'tag_release'  This Adultery is Ripe
                                       'tag_title'  Doctor! Doctor!
                                             'bpm'  122.289
                                    'search_title'  'doctor':1
                                   'search_artist'  'blood':2 'brothers':3 'the':1
                                  'search_release'  'adultery':2 'is':3 'ripe':4 'this':1
                                     'search_rest'  '00dwimp':1 '2000':2,3 'eid':4 'metal':5
                                    'search_combo'  '00dwimp':9 '2000':10,11 'adultery':6C 'blood':3B 'brothers':4B 'doctor':1A 'eid':12 'is':7C 'metal':13 'ripe':8C 'the':2B 'this':5C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-2', 'q-grit-4']
                                      'lastfmtags'  ['indie', 'post hardcore', 'hardcore', 'experimental', 'screamo']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620301613.2117991  (2021-05-06 13:46:53)
                             'size'  7365153