======================== unified (from filesystem) ========================
                                         'bitrate'  '237.502'
                                        'duration'  '404'
                                          'artist'  'Type O Negative'
                                     'text_people'  ''
                                         'release'  'Slow, Deep And Hard'
                                           'title'  'Glass Walls Of Limbo (Dance Mix)'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['metal', 'gothic', 'doom metal', 'gothic rock', 'gothic metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic'
                                             'bpm'  '129.813'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'LAME 3.97 -V 0 --vbr-new'
'COMM:ID3v1 Comment:XXX'                            'LAME 3.97 -V 0 --vbr-new'
'COMM:ID3v1 Comment:eng'                            'LAME 3.97 -V 0 --vbr-new'
'COMM:iTunNORM:eng'                                 (' 000000DE 00000122 00000602 0000158E 00021EBF 00023EC2 0000396F 00003555 '
 '0002DE46 00023EC2')
'TALB' (Album/Movie/Show title)                     'Slow, Deep And Hard'
'TBPM' (BPM (beats per minute))                     '129.813'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-doom or gothic'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'Glass Walls Of Limbo (Dance Mix)'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Type O Negative'
'TRCK' (Track number/Position in set)               '5'
'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'                                   ['metal', 'gothic', 'doom metal', 'gothic rock', 'gothic metal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-2.59 dB'
'TXXX:replaygain_track_peak'                        '1.199894'

========================== row from database ==========================
                                              'id'  286649
                                            'path'  /data/Music/Bulk/00dwimp/Type O Negative/Type O Negative - Slow, Deep And Hard/05 - Glass Walls Of Limbo (Dance Mix).mp3
                                         'working'  None
                                         'bitrate'  237
                                    'duration_sec'  404
                                           'genre'  eid-metal-doom or gothic
                                        'filesize'  12012461
                                           'mtime'  1620310444
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 05 eid metal doom or gothic
                                      'tag_artist'  Type O Negative
                                     'tag_release'  Slow, Deep And Hard
                                       'tag_title'  Glass Walls Of Limbo (Dance Mix)
                                             'bpm'  129.813
                                    'search_title'  'dance':5,6 'glass':1 'limbo':4 'mix':7,8 'of':3 'walls':2
                                   'search_artist'  'negative':3 'o':2 'type':1
                                  'search_release'  'and':4 'deep':3 'hard':5 'slow':1,2
                                     'search_rest'  '00dwimp':1 'doom':4 'eid':2 'gothic':6 'metal':3 'or':5
                                    'search_combo'  '00dwimp':17 'and':15C 'dance':5A,6A 'deep':14C 'doom':20 'eid':18 'glass':1A 'gothic':22 'hard':16C 'limbo':4A 'metal':19 'mix':7A,8A 'negative':11B 'o':10B 'of':3A 'or':21 'slow':12C,13C 'type':9B 'walls':2A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['metal', 'gothic', 'doom metal', 'gothic rock', 'gothic metal']
                                        'tag_date'  1991
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310443.6764562  (2021-05-06 16:14:03)
                             'size'  12012461