======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '186'
                                          'artist'  'Teddy Darby'
                                     'text_people'  ''
                                         'release'  'The Paramount Masters'
                                           'title'  'Lawdy Lawdy Worried Blues'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['blues']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '25'
                                            'date'  '1929'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted;set-pl-spelling'
                                             'bpm'  '107.549'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 0000059A 0000059A 00005C94 00005C94 000082EB 000082EB 00007005 00007005 '
 '0001B214 0001B214')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000714 00000000007D4BDC 00000000 004421A2 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '25+838F019C21F8C02AF613D303B3E6299E+4227038'
'TALB' (Album/Movie/Show title)                     'The Paramount Masters'
'TBPM' (BPM (beats per minute))                     '107.549'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-unsorted', 'set-pl-spelling']
'TDRC' (Recording time)                             '1929'
'TENC' (Encoded by)                                 'iTunes v7.5'
'TIT2' (Title/songname/content description)         'Lawdy Lawdy Worried Blues'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Teddy Darby'
'TPOS' (Part of a set)                              '1/4'
'TRCK' (Track number/Position in set)               '5/25'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   'blues'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.56 dB'
'TXXX:replaygain_track_peak'                        '0.437273'

========================== row from database ==========================
                                              'id'  766089
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/Teddy Darby - Lawdy Lawdy Worried Blues.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  186
                                           'genre'  prerock-unsorted;set-pl-spelling
                                        'filesize'  4472310
                                           'mtime'  1620356408
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling prerock unsorted;set pl spelling
                                      'tag_artist'  Teddy Darby
                                     'tag_release'  The Paramount Masters
                                       'tag_title'  Lawdy Lawdy Worried Blues
                                             'bpm'  107.549
                                    'search_title'  'blues':3 'lawdy':1 'worried':2
                                   'search_artist'  'darby':2 'teddy':1
                                  'search_release'  'masters':3 'paramount':2 'the':1
                                     'search_rest'  '0novelty':2 '0playlists':1 'pl':10 'prerock':5 'set':7,9 'spelling':4 'themes':3 'unsorted':6,8
                                    'search_combo'  '0novelty':10 '0playlists':9 'blues':3A 'darby':5B 'lawdy':1A 'masters':8C 'paramount':7C 'pl':18 'prerock':13 'set':15,17 'spelling':12 'teddy':4B 'the':6C 'themes':11 'unsorted':14,16 'worried':2A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues']
                                        'tag_date'  1929
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1620356408.147253  (2021-05-07 05:00:08)
                             'size'  4472310