======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '173'
                                          'artist'  'The Dragoneers'
                                     'text_people'  ''
                                         'release'  'Disco Sickness'
                                           'title'  'Kung Fu'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                     'discogstags'  "['funk / soul', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '110.967'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '365 Days Project'
'COMM:ID3v1 Comment:XXX'                            '365 Days Project'
'COMM:iTunNORM:eng'                                 (' 000004D3 00000403 00002FCB 00001F6C 0001F505 00010349 00008093 00007B2F '
 '0000ACA7 0001EBD6')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000714 000000000074AEDC 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Disco Sickness'
'TBPM' (BPM (beats per minute))                     '110.967'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1973'
'TENC' (Encoded by)                                 'iTunes v6.0.5.20'
'TIT2' (Title/songname/content description)         'Kung Fu'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Dragoneers'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.01 dB'
'TXXX:replaygain_track_peak'                        '0.701760'

========================== row from database ==========================
                                              'id'  1348787
                                            'path'  /data/Music/Bulk/00poprockelectronic/11/306_06_The_Dragoneers_-_Kung_Fu.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  173
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  3606574
                                           'mtime'  1620537339
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 11 306_06_The_Dragoneers_ _Kung_Fu electronic we disco or italo
                                      'tag_artist'  The Dragoneers
                                     'tag_release'  Disco Sickness
                                       'tag_title'  Kung Fu
                                             'bpm'  110.967
                                    'search_title'  'fu':2 'kung':1
                                   'search_artist'  'dragoneers':2 'the':1
                                  'search_release'  'disco':1 'sickness':2
                                     'search_rest'  '00poprockelectronic':1 '06':3 '306':2 'disco':10 'dragoneers':5 'electronic':8 'fu':7 'italo':12 'kung':6 'or':11 'the':4 'we':9
                                    'search_combo'  '00poprockelectronic':7 '06':9 '306':8 'disco':5C,16 'dragoneers':4B,11 'electronic':14 'fu':2A,13 'italo':18 'kung':1A,12 'or':17 'sickness':6C 'the':3B,10 'we':15
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1973
                                     'discogstags'  ['funk / soul', 'funk']

============================== file details ==============================
                                           'mtime'  1620537338.772539  (2021-05-09 07:15:38)
                             'size'  3606574