======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '275'
                                          'artist'  'Dio'
                                     'text_people'  ''
                                         'release'  'Diamonds: The Best Of Dio'
                                           'title'  'We Rock'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['classic rock', 'rock', 'hard rock', 'metal', 'heavy metal']"
                                     'discogstags'  "['hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '13'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '145.059'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'Cleaned by TuneUp!'
'COMM:ID3v1 Comment:XXX'                            'Cleaned by TuneUp!'
'COMM:iTunNORM:eng'                                 (' 0000054F 00000538 0000227E 00001C4B 00026853 00021B0C 00005698 000056B5 '
 '0003C559 0003C559')
'TALB' (Album/Movie/Show title)                     'Diamonds: The Best Of Dio'
'TBPM' (BPM (beats per minute))                     '145.059'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'We Rock'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dio'
'TPE2' (Band/orchestra/accompaniment)               'Dio'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4/13'
'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'                                  'hip hop'
'TXXX:lastfmtags'                                   ['classic rock', 'rock', 'hard rock', 'metal', 'heavy metal']
'TXXX:q-bass'                                       '3'
'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'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.11 dB'
'TXXX:replaygain_track_peak'                        '0.569636'

========================== row from database ==========================
                                              'id'  1294188
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/dio - we rock(2).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  275
                                           'genre'  eid-metal
                                        'filesize'  4472913
                                           'mtime'  1620301850
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] dio we rock(2) eid metal
                                      'tag_artist'  Dio
                                     'tag_release'  Diamonds: The Best Of Dio
                                       'tag_title'  We Rock
                                             'bpm'  145.059
                                    'search_title'  'rock':2 'we':1
                                   'search_artist'  'dio':1
                                  'search_release'  'best':4 'diamonds':1,2 'dio':6 'of':5 'the':3
                                     'search_rest'  '00poprockelectronic':1 '2':10 'dio':7 'eid':12 'files':5,6 'loose':3,4 'metal':13 'rock':9 'rock2':11 'unsorted':2 'we':8
                                    'search_combo'  '00poprockelectronic':10 '2':19 'best':7C 'diamonds':4C,5C 'dio':3B,9C,16 'eid':21 'files':14,15 'loose':12,13 'metal':22 'of':8C 'rock':2A,18 'rock2':20 'the':6C 'unsorted':11 'we':1A,17
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  8A
                                           '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['classic rock', 'rock', 'hard rock', 'metal', 'heavy metal']
                                        'tag_date'  1994
                                     'discogstags'  ['hip hop']

============================== file details ==============================
                                           'mtime'  1620301850.0290172  (2021-05-06 13:50:50)
                             'size'  4472913