======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '398'
                                          'artist'  'Galadriel'
                                     'text_people'  ''
                                         'release'  'Progsoup 48'
                                           'title'  'Merciless Tides'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['metal', 'extreme gothic metal', 'slovak', 'dark metal', 'gothic metal', "
 "'doom metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '50'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '114.868'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:\x01ÿþ:'                                      PRIV(owner='\x01ÿþ', data=b'')
'TALB' (Album/Movie/Show title)                     'Progsoup 48'
'TBPM' (BPM (beats per minute))                     '114.868'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'Merciless Tides'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Galadriel'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Musea'
'TRCK' (Track number/Position in set)               '50'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['metal',
 'extreme gothic metal',
 'slovak',
 'dark metal',
 'gothic metal',
 'doom metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.33 dB'
'TXXX:replaygain_track_peak'                        '0.650952'

========================== row from database ==========================
                                              'id'  1412057
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 48/2753 galadriel - Merciless Tides.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  398
                                           'genre'  rock-cppex-progressive
                                        'filesize'  9556237
                                           'mtime'  1620737503
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 2753 galadriel rock cppex progressive
                                      'tag_artist'  Galadriel
                                     'tag_release'  Progsoup 48
                                       'tag_title'  Merciless Tides
                                             'bpm'  114.868
                                    'search_title'  'merciless':1 'tides':2
                                   'search_artist'  'galadriel':1
                                  'search_release'  '48':2 'progsoup':1
                                     'search_rest'  '2753':3 'classicprogpsy':1 'cppex':6 'galadriel':4 'progressive':7 'progsoup':2 'rock':5
                                    'search_combo'  '2753':8 '48':5C 'classicprogpsy':6 'cppex':11 'galadriel':3B,9 'merciless':1A 'progressive':12 'progsoup':4C,7 'rock':10 'tides':2A
                                    'tag_tracknum'  50
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['metal', 'extreme gothic metal', 'slovak', 'dark metal', 'gothic metal', 'doom metal']
                                        'tag_date'  1991
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737502.6321654  (2021-05-11 14:51:42)
                             'size'  9556237