======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '299'
                                          'artist'  'Cause 4 Concern'
                                     'text_people'  ''
                                         'release'  '21st Century Drum & Bass 2 cd 1'
                                           'title'  'Moongerm (Cause4Concern)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['drum and bass', 'neurofunk', 'drum n bass', 'electronic', 'dnb']"
                                     'discogstags'  "['electronic', 'drum n bass']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '12'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '89.651'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '1'
'COMM:iTunNORM:eng'                                 (' 00000778 0000073C 000047AC 0000466F 00008B2F 00008B2F 00008B36 00008ABC '
 '00010D49 00010D49')
'COMM:iTunPGAP:eng'                                 '1'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000007BC 0000000000C9D434 00000000 006DC87E 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '12+18002D4BD53F80BE9EEFBA8AE90C7A35+2381898'
'TALB' (Album/Movie/Show title)                     '21st Century Drum & Bass 2 cd 1'
'TBPM' (BPM (beats per minute))                     '89.651'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2002'
'TENC' (Encoded by)                                 'iTunes v7.0.1.8'
'TIT2' (Title/songname/content description)         'Moongerm (Cause4Concern)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cause4concern'
'TPE2' (Band/orchestra/accompaniment)               'Cause 4 Concern'
'TPOS' (Part of a set)                              '1/3'
'TRCK' (Track number/Position in set)               '6/12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'drum n bass']
'TXXX:lastfmtags'                                   ['drum and bass', 'neurofunk', 'drum n bass', 'electronic', 'dnb']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.50 dB'
'TXXX:replaygain_track_peak'                        '0.549287'

========================== row from database ==========================
                                              'id'  1407727
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/drumandbass/Cause4Concern - Moongerm.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  299
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  7230952
                                           'mtime'  1621697677
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat drumandbass electronic generic or radio dance
                                      'tag_artist'  Cause 4 Concern
                                     'tag_release'  21st Century Drum & Bass 2 cd 1
                                       'tag_title'  Moongerm (Cause4Concern)
                                             'bpm'  89.651
                                    'search_title'  'cause4concern':2,3 'moongerm':1
                                   'search_artist'  '4':2 'cause':1 'concern':3
                                  'search_release'  '1':7 '2':5 '21st':1 'bass':4 'cd':6 'century':2 'drum':3
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'drumandbass':5 'electronic':6 'generic':2 'or':7 'radio':8 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':14 '1':13C '2':11C '21st':7C '4':5B 'bass':10C 'cause':4B 'cause4concern':2A,3A 'cd':12C 'century':8C 'concern':6B 'dance':16 'drum':9C 'drumandbass':18 'electronic':19 'generic':15 'moongerm':1A 'or':20 'radio':21 'trapbeat':17
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['drum and bass', 'neurofunk', 'drum n bass', 'electronic', 'dnb']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'drum n bass']

============================== file details ==============================
                                           'mtime'  1621697677.0240328  (2021-05-22 17:34:37)
                             'size'  7230952