======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '211'
                                          'artist'  'Beastie Boys'
                                     'text_people'  ''
                                         'release'  'Solid Gold Hits'
                                           'title'  'Fight For Your Right'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['alternative', 'hip hop', 'rap', 'rock']"
                                     'discogstags'  "['hip hop', 'pop rap']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '15'
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '133.228'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000028DB 00000DC4 0001D9F4'
'COMM:iTunNORM:eng'                                 (' 000028DB 00000DC4 0001D9F4 000096F6 0000C7B1 0001A94E 00009CB5 0000967C '
 '00028963 00028949')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000007C8 00000000008DF528 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '15+B498E89C2B7BEDBF46682EA85B7AD585+6412437'
'TALB' (Album/Movie/Show title)                     'Solid Gold Hits'
'TBPM' (BPM (beats per minute))                     '133.228'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '1986'
'TENC' (Encoded by)                                 'iTunes v6.0.1.3'
'TIT2' (Title/songname/content description)         'Fight For Your Right'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Beastie Boys'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '15/15'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['hip hop', 'pop rap']
'TXXX:lastfmtags'                                   ['alternative', 'hip hop', 'rap', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.29 dB'
'TXXX:replaygain_track_peak'                        '0.380448'

========================== row from database ==========================
                                              'id'  1361489
                                            'path'  /data/Music/Bulk/00poprockelectronic/Beasty Boys/Solid Gold Hits/15 Fight For Your Right.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  211
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  4304644
                                           'mtime'  1620567612
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Beasty 15 hip hop rnb rap turntablism
                                      'tag_artist'  Beastie Boys
                                     'tag_release'  Solid Gold Hits
                                       'tag_title'  Fight For Your Right
                                             'bpm'  133.228
                                    'search_title'  'fight':1 'for':2 'right':4 'your':3
                                   'search_artist'  'beastie':1 'boys':2
                                  'search_release'  'gold':2 'hits':3 'solid':1
                                     'search_rest'  '00poprockelectronic':1 'beasty':2 'hip':3 'hop':4 'rap':6 'rnb':5 'turntablism':7
                                    'search_combo'  '00poprockelectronic':10 'beastie':5B 'beasty':11 'boys':6B 'fight':1A 'for':2A 'gold':8C 'hip':12 'hits':9C 'hop':13 'rap':15 'right':4A 'rnb':14 'solid':7C 'turntablism':16 'your':3A
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'hip hop', 'rap', 'rock']
                                        'tag_date'  1986
                                     'discogstags'  ['hip hop', 'pop rap']

============================== file details ==============================
                                           'mtime'  1620567612.306755  (2021-05-09 15:40:12)
                             'size'  4304644