======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '137'
                                          'artist'  'Cartoon Candy Carnival'
                                     'text_people'  ''
                                         'release'  'Bubblegum & Sunshine, May 2006'
                                           'title'  'Everything Is Mickey Mouse'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', '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']")
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-spelling'
                                             'bpm'  '132.791'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Bubblegum & Sunshine, May 2006'
'TBPM' (BPM (beats per minute))                     '132.791'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-spelling'
'TIT2' (Title/songname/content description)         'Everything Is Mickey Mouse'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '137012'
'TPE1' (Lead performer(s)/Soloist(s))               'Cartoon Candy Carnival'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:q-bass'                                       '3'
'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'                        '+0.37 dB'
'TXXX:replaygain_track_peak'                        '0.372456'

========================== row from database ==========================
                                              'id'  759326
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/Cartoon Candy Carnival - Everything Is Mickey Mouse.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  137
                                           'genre'  set-pl-spelling
                                        'filesize'  2754432
                                           'mtime'  1620356306
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling set pl spelling
                                      'tag_artist'  Cartoon Candy Carnival
                                     'tag_release'  Bubblegum & Sunshine, May 2006
                                       'tag_title'  Everything Is Mickey Mouse
                                             'bpm'  132.791
                                    'search_title'  'everything':1 'is':2 'mickey':3 'mouse':4
                                   'search_artist'  'candy':2 'carnival':3 'cartoon':1
                                  'search_release'  '2006':5 'bubblegum':1 'may':4 'sunshine':2,3
                                     'search_rest'  '0novelty':2 '0playlists':1 'pl':6 'set':5 'spelling':4 'themes':3
                                    'search_combo'  '0novelty':14 '0playlists':13 '2006':12C 'bubblegum':8C 'candy':6B 'carnival':7B 'cartoon':5B 'everything':1A 'is':2A 'may':11C 'mickey':3A 'mouse':4A 'pl':18 'set':17 'spelling':16 'sunshine':9C,10C 'themes':15
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1620356306.4794877  (2021-05-07 04:58:26)
                             'size'  2754432