======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '165'
                                          'artist'  'Rex Allen'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'L-O-N-E-S-O-M-E Letter Blues'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-2', '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-2']")
                                      'lastfmtags'  "['country', 'all', 'western', 'rockabilly', 'lobest']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '26'
                                      'tracktotal'  '27'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-spelling'
                                             'bpm'  '133.403'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00001401 00000D3D 0000E28A 00008F2B 00017AC6 00017AAC 000080D2 00007EFF '
 '00018182 000068E5')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 0000078C 00000000006F6CE4 00000000 003C9564 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '7511431B+331644+27+150+10219+23981+34573+45884+58994+71104+82756+95433+105173+119380+133395+145020+155545+168684+181028+193571+205250+215252+228091+240509+252796+265774+278204+292412+305618+318037'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '26'
'TBPM' (BPM (beats per minute))                     '133.403'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-spelling'
'TENC' (Encoded by)                                 'iTunes 9.2.1'
'TIT2' (Title/songname/content description)         'L-O-N-E-S-O-M-E Letter Blues'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rex Allen'
'TRCK' (Track number/Position in set)               '26/27'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'all', 'western', 'rockabilly', 'lobest']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.66 dB'
'TXXX:replaygain_track_peak'                        '0.304467'

========================== row from database ==========================
                                              'id'  767732
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/Rex Allen - L-O-N-E-S-O-M-E Letter Blues.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  165
                                           'genre'  set-pl-spelling
                                        'filesize'  3977548
                                           'mtime'  1620356390
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling set pl spelling
                                      'tag_artist'  Rex Allen
                                     'tag_release'  None
                                       'tag_title'  L-O-N-E-S-O-M-E Letter Blues
                                             'bpm'  133.403
                                    'search_title'  'blues':11 'e':4,8 'l':1 'letter':10 'lonesome':9 'm':7 'n':3 'o':2,6 's':5
                                   'search_artist'  'allen':2 'rex':1
                                  'search_release'  
                                     'search_rest'  '0novelty':2 '0playlists':1 'pl':6 'set':5 'spelling':4 'themes':3
                                    'search_combo'  '0novelty':15 '0playlists':14 'allen':13B 'blues':11A 'e':4A,8A 'l':1A 'letter':10A 'lonesome':9A 'm':7A 'n':3A 'o':2A,6A 'pl':19 'rex':12B 's':5A 'set':18 'spelling':17 'themes':16
                                    'tag_tracknum'  26
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['country', 'all', 'western', 'rockabilly', 'lobest']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620356390.4259436  (2021-05-07 04:59:50)
                             'size'  3977548