======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '102'
                                          'artist'  'Rod McKuen'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Oliver Twist'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['all', 'to listen', 'spoken word', 'blues', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-spelling'
                                             'bpm'  '94.021'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 0000080E 00000F16 000022DE 00004FB9 0000168D 0000CAF5 000070C8 00005AC7 '
 '00005C72 00001BC1')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A80 00000000004515F0 00000000 00258C3F 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '9B08280E+156809+14+150+7850+18786+32548+42023+53742+76408+85796+95200+106060+115829+128618+136506+148744'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '1'
'TBPM' (BPM (beats per minute))                     '94.021'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-spelling'
'TENC' (Encoded by)                                 'iTunes 9.2.1'
'TIT2' (Title/songname/content description)         'Oliver Twist'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rod McKuen'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['all', 'to listen', 'spoken word', 'blues', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.80 dB'
'TXXX:replaygain_track_peak'                        '0.435730'

========================== row from database ==========================
                                              'id'  766919
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/Rod McKuen - Oliver Twist.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  102
                                           'genre'  set-pl-spelling
                                        'filesize'  2467879
                                           'mtime'  1676053040
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling set pl spelling
                                      'tag_artist'  Rod McKuen
                                     'tag_release'  None
                                       'tag_title'  Oliver Twist
                                             'bpm'  94.021
                                    'search_title'  'oliver':1 'twist':2
                                   'search_artist'  'kuen':4 'mc':3 'mckuen':2 'rod':1
                                  'search_release'  
                                     'search_rest'  '0novelty':2 '0playlists':1 'pl':6 'set':5 'spelling':4 'themes':3
                                    'search_combo'  '0novelty':8 '0playlists':7 'kuen':6B 'mc':5B 'mckuen':4B 'oliver':1A 'pl':12 'rod':3B 'set':11 'spelling':10 'themes':9 'twist':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']
                                      'lastfmtags'  ['all', 'to listen', 'spoken word', 'blues', 'singer songwriter']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676053039.8541784  (2023-02-10 19:17:19)
                             'size'  2467879