======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '177'
                                          'artist'  'Legendary Stardust Cowboy'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'You Are My Gloria'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'q-syn-2', '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-2']")
                                      'lastfmtags'  "['psychobilly', 'rockabilly', 'country', 'rock', 'outsider']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '25'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-spelling'
                                             'bpm'  '135.819'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000004FA 00000438 00004621 00003B89 0001622F 0001622F 000067A1 000073C0 '
 '000124C1 000123BC')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A20 0000000000771D50 00000000 0040C60B 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '710E0C19+269911+25+150+10881+25971+35006+47154+56308+65098+82134+95410+122606+133811+150627+160876+172224+176349+187305+193749+202725+215872+229323+234929+245266+246750+253322+264615'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '8'
'TBPM' (BPM (beats per minute))                     '135.819'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-spelling'
'TENC' (Encoded by)                                 'iTunes 9.2.1'
'TIT2' (Title/songname/content description)         'You Are My Gloria'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Legendary Stardust Cowboy'
'TRCK' (Track number/Position in set)               '8/25'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['psychobilly', 'rockabilly', 'country', 'rock', 'outsider']
'TXXX:q-bass'                                       '1'
'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'                        '+1.05 dB'
'TXXX:replaygain_track_peak'                        '0.537294'

========================== row from database ==========================
                                              'id'  770155
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/Legendary Stardust Cowboy - You Are My Gloria.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  177
                                           'genre'  set-pl-spelling
                                        'filesize'  4252146
                                           'mtime'  1620356368
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling set pl spelling
                                      'tag_artist'  Legendary Stardust Cowboy
                                     'tag_release'  None
                                       'tag_title'  You Are My Gloria
                                             'bpm'  135.819
                                    'search_title'  'are':2 'gloria':4 'my':3 'you':1
                                   'search_artist'  'cowboy':3 'legendary':1 'stardust':2
                                  'search_release'  
                                     'search_rest'  '0novelty':2 '0playlists':1 'pl':6 'set':5 'spelling':4 'themes':3
                                    'search_combo'  '0novelty':9 '0playlists':8 'are':2A 'cowboy':7B 'gloria':4A 'legendary':5B 'my':3A 'pl':13 'set':12 'spelling':11 'stardust':6B 'themes':10 'you':1A
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  2A
                                           '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-1', 'q-grit-2']
                                      'lastfmtags'  ['psychobilly', 'rockabilly', 'country', 'rock', 'outsider']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620356367.638363  (2021-05-07 04:59:27)
                             'size'  4252146