======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '160'
                                          'artist'  'Nora Dean'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Barbwire'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-2', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['jamaica', 'reggae', 'calypso', 'female vocalists', 'rocksteady']"
                                     'discogstags'  "['reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '18'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-sex'
                                             'bpm'  '84.916'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000004F4 00000560 000027B0 000029BE 0000149C 0000149C 000063F9 000063CB '
 '00000CC1 00000CC1')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000930 00000000006C18C0 00000000 003AC688 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '0F0BCE12+226839+18+150+13473+26946+38844+50817+60090+74313+90261+102309+116832+129705+142953+155601+168699+182772+191820+200493+212091'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '8'
'TBPM' (BPM (beats per minute))                     '84.916'
'TCON' (Content type, a.k.a. Genre)                 'set-th-sex'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Barbwire'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nora Dean'
'TRCK' (Track number/Position in set)               '8/18'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'reggae'
'TXXX:lastfmtags'                                   ['jamaica', 'reggae', 'calypso', 'female vocalists', 'rocksteady']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.97 dB'
'TXXX:replaygain_track_peak'                        '0.464274'

========================== row from database ==========================
                                              'id'  765498
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/sexy/Nora Dean - Barbwire.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  160
                                           'genre'  set-th-sex
                                        'filesize'  3859056
                                           'mtime'  1621696531
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes sexy set th sex
                                      'tag_artist'  Nora Dean
                                     'tag_release'  None
                                       'tag_title'  Barbwire
                                             'bpm'  84.916
                                    'search_title'  'barbwire':1
                                   'search_artist'  'dean':2 'nora':1
                                  'search_release'  
                                     'search_rest'  '0novelty':2 '0playlists':1 'set':5 'sex':7 'sexy':4 'th':6 'themes':3
                                    'search_combo'  '0novelty':5 '0playlists':4 'barbwire':1A 'dean':3B 'nora':2B 'set':8 'sex':10 'sexy':7 'th':9 'themes':6
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jamaica', 'reggae', 'calypso', 'female vocalists', 'rocksteady']
                                        'tag_date'  
                                     'discogstags'  ['reggae']

============================== file details ==============================
                                           'mtime'  1621696530.897082  (2021-05-22 17:15:30)
                             'size'  3859056