======================== unified (from filesystem) ========================
                                         'bitrate'  '170.974'
                                        'duration'  '323'
                                          'artist'  'Bilal'
                                     'text_people'  ''
                                         'release'  '1st Born Second'
                                           'title'  'Love Poems'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-2', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['rnb', 'nu soul', 'soul', 'neo soul']"
                                     'discogstags'  "['hip hop', 'funk / soul', 'rnb/swing', 'neo soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '17'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '84.315'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000FD7 000001AE 0001483E'
'COMM:iTunNORM:eng'                                 (' 00000FD7 000001AE 0001483E 0000793F 0000B1C1 0001C7EB 00008EBD 00008872 '
 '00047F05 0002690A')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000930 0000000000D99BC0 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '17+F6E4904A52D31F59A9E1072E996EC32F+1429803'
'TALB' (Album/Movie/Show title)                     '1st Born Second'
'TBPM' (BPM (beats per minute))                     '84.315'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2001'
'TENC' (Encoded by)                                 'iTunes v6.0.2'
'TIT2' (Title/songname/content description)         'Love Poems'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bilal'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '13/17'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['hip hop', 'funk / soul', 'rnb/swing', 'neo soul']
'TXXX:lastfmtags'                                   ['rnb', 'nu soul', 'soul', 'neo soul']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.60 dB'
'TXXX:replaygain_track_peak'                        '0.480937'

========================== row from database ==========================
                                              'id'  765183
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Bilal - LOVE POEMS.mp3
                                         'working'  None
                                         'bitrate'  170
                                    'duration_sec'  323
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  6983680
                                           'mtime'  1620586955
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism LOVE POEMS hip hop rnb rap turntablism
                                      'tag_artist'  Bilal
                                     'tag_release'  1st Born Second
                                       'tag_title'  Love Poems
                                             'bpm'  84.315
                                    'search_title'  'love':1 'poems':2
                                   'search_artist'  'bilal':1
                                  'search_release'  '1st':1 'born':2 'second':3
                                     'search_rest'  'hip':7 'hiphop':1 'hop':8 'love':5 'poems':6 'rap':2 'rnb':3 'turntablism':4
                                    'search_combo'  '1st':4C 'bilal':3B 'born':5C 'hip':13 'hiphop':7 'hop':14 'love':1A,11 'poems':2A,12 'rap':8 'rnb':9 'second':6C 'turntablism':10
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', '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-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rnb', 'nu soul', 'soul', 'neo soul']
                                        'tag_date'  2001
                                     'discogstags'  ['hip hop', 'funk / soul', 'rnb/swing', 'neo soul']

============================== file details ==============================
                                           'mtime'  1620586955.1208558  (2021-05-09 21:02:35)
                             'size'  6983680