======================== unified (from filesystem) ========================
                                         'bitrate'  '257.414'
                                        'duration'  '263'
                                          'artist'  'Nine Inch Nails'
                                     'text_people'  ''
                                         'release'  'With Teeth'
                                           'title'  'Only'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial metal', 'rock', 'industrial', 'nin', 'industrial rock']"
                                     'discogstags'  "['electronic', 'rock', 'alternative rock', 'industrial']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave;set-pl-sced'
                                             'bpm'  '112.134'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000D57 00000ED9 00004930'
'COMM:iTunNORM:eng'                                 (' 00000D57 00000ED9 00004930 0000832E 0002E17C 0003A6C5 00008000 00008000 '
 '00009C04 000048F3')
'TALB' (Album/Movie/Show title)                     'With Teeth'
'TBPM' (BPM (beats per minute))                     '112.134'
'TCON' (Content type, a.k.a. Genre)                 ['eid-ebm or industrial or darkwave', 'set-pl-sced']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Only'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nine Inch Nails'
'TPE2' (Band/orchestra/accompaniment)               'Nine Inch Nails'
'TRCK' (Track number/Position in set)               '8'
'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'                                  ['electronic', 'rock', 'alternative rock', 'industrial']
'TXXX:lastfmtags'                                   ['industrial metal', 'rock', 'industrial', 'nin', 'industrial rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.49 dB'
'TXXX:replaygain_track_peak'                        '0.416397'

========================== row from database ==========================
                                              'id'  1399600
                                            'path'  /data/Music/Bulk/00dwimp/00ebm-industrial-darkwave-goth/Nine Inch Nails/[2005] With Teeth/08 Only.mp3
                                         'working'  None
                                         'bitrate'  257
                                    'duration_sec'  263
                                           'genre'  eid-ebm or industrial or darkwave;set-pl-sced
                                        'filesize'  8505578
                                           'mtime'  1620296041
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00ebm industrial darkwave goth [2005] 08 eid ebm or industrial or darkwave;set pl sced
                                      'tag_artist'  Nine Inch Nails
                                     'tag_release'  With Teeth
                                       'tag_title'  Only
                                             'bpm'  112.134
                                    'search_title'  'only':1
                                   'search_artist'  'inch':2 'nails':3 'nine':1
                                  'search_release'  'teeth':2 'with':1
                                     'search_rest'  '00dwimp':1 '00ebm':2 '2005':6,7 'darkwave':4,11,13 'ebm':9 'eid':8 'goth':5 'industrial':3 'or':10 'pl':15 'sced':16 'set':12,14
                                    'search_combo'  '00dwimp':7 '00ebm':8 '2005':12,13 'darkwave':10,17,19 'ebm':15 'eid':14 'goth':11 'inch':3B 'industrial':9 'nails':4B 'nine':2B 'only':1A 'or':16 'pl':21 'sced':22 'set':18,20 'teeth':6C 'with':5C
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['industrial metal', 'rock', 'industrial', 'nin', 'industrial rock']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic', 'rock', 'alternative rock', 'industrial']

============================== file details ==============================
                                           'mtime'  1620296040.7263858  (2021-05-06 12:14:00)
                             'size'  8505578