======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '199'
                                          'artist'  'The Who'
                                     'text_people'  'Pete Townshend'
                                         'release'  'The Boat That Rocked OST'
                                           'title'  'My Generation (Original Mono Version)'
                                           'quals'  ("['Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', 'q-chart-4', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['hard rock', 'rock', '60s', 'british', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '18'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '130.7'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00001B6C 00001B6C 00009D06 00009D06 00028D0F 00028D0F 000079EC 000079EC '
 '00011C63 00011C63')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 0000096C 0000000000865284 00000000 0079BF59 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'The Boat That Rocked OST'
'TBPM' (BPM (beats per minute))                     '130.7'
'TCOM' (Composer)                                   'Pete Townshend'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'iTunes 8.1.0.52'
'TIT2' (Title/songname/content description)         'My Generation (Original Mono Version)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Who'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/2'
'TRCK' (Track number/Position in set)               '2/18'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['hard rock', 'rock', '60s', 'british', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.97 dB'
'TXXX:replaygain_track_peak'                        '0.335656'

========================== row from database ==========================
                                              'id'  1257022
                                            'path'  /data/Music/Bulk/0soundtrack/The Supremes - The boat that rocked OST/2-02 My Generation (Original Mono Ve.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  199
                                           'genre'  soundtrack-video
                                        'filesize'  8161490
                                           'mtime'  1620334314
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Supremes boat that rocked 2 02 soundtrack video
                                      'tag_artist'  The Who
                                     'tag_release'  The Boat That Rocked OST
                                       'tag_title'  My Generation (Original Mono Version)
                                             'bpm'  130.7
                                    'search_title'  'generation':2 'mono':5 'my':1 'original':3,4 'version':6,7
                                   'search_artist'  'the':1 'who':2
                                  'search_release'  'boat':2 'ost':5 'rocked':4 'that':3 'the':1
                                     'search_rest'  '0soundtrack':1 '2':6 'boat':3 'rocked':5 'soundtrack':7 'supremes':2 'that':4 'video':8
                                    'search_combo'  '0soundtrack':15 '2':20 'boat':11C,17 'generation':2A 'mono':5A 'my':1A 'original':3A,4A 'ost':14C 'rocked':13C,19 'soundtrack':21 'supremes':16 'that':12C,18 'the':8B,10C 'version':6A,7A 'video':22 'who':9B
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['hard rock', 'rock', '60s', 'british', 'classic rock']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620334314.3518803  (2021-05-06 22:51:54)
                             'size'  8161490