======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '159'
                                          'artist'  'Echoes '
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'I Love Candy'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  ("['post-hardcore', 'progressive rock', 'progressive metal', 'post-rock', "
 "'post-metal']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'set-pl-spelling'
                                             'bpm'  '125.704'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125.704'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-spelling'
'TDRC' (Recording time)                             '1965'
'TENC' (Encoded by)                                 'Amadeus II'
'TIT2' (Title/songname/content description)         'I Love Candy'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Echoes '
'TRCK' (Track number/Position in set)               '0'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['post-hardcore',
 'progressive rock',
 'progressive metal',
 'post-rock',
 'post-metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                        '+0.12 dB'
'TXXX:replaygain_track_peak'                        '0.302648'

========================== row from database ==========================
                                              'id'  761237
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/The Echoes - I Love Candy (Ascot, 1965).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  159
                                           'genre'  set-pl-spelling
                                        'filesize'  3823506
                                           'mtime'  1620356420
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling The (Ascot, 1965) set pl spelling
                                      'tag_artist'  Echoes 
                                     'tag_release'  None
                                       'tag_title'  I Love Candy
                                             'bpm'  125.704
                                    'search_title'  'candy':3 'i':1 'love':2
                                   'search_artist'  'echoes':1
                                  'search_release'  
                                     'search_rest'  '0novelty':2 '0playlists':1 '1965':8,9 'ascot':6,7 'pl':11 'set':10 'spelling':4 'the':5 'themes':3
                                    'search_combo'  '0novelty':6 '0playlists':5 '1965':12,13 'ascot':10,11 'candy':3A 'echoes':4B 'i':1A 'love':2A 'pl':15 'set':14 'spelling':8 'the':9 'themes':7
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['post-hardcore', 'progressive rock', 'progressive metal', 'post-rock', 'post-metal']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620356420.4971774  (2021-05-07 05:00:20)
                             'size'  3823506