======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '449'
                                          'artist'  'The Mercury Program'
                                     'text_people'  ''
                                         'release'  'Progsoup 39'
                                           'title'  'Marianas'
                                           '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-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'math rock', 'indie', 'post rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '45'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '133.140'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
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'PRIV:WM/WMCollectionID:æ_\x8fMÆ\x7fxF¶þD$U¼÷/'     PRIV(owner='WM/WMCollectionID', data=b'\xe6_\x8fM\xc6\x7fxF\xb6\xfeD$U\xbc\xf7/')
'PRIV:WM/WMContentID:\x90~z\x04÷lù@\x8enp¬\x8c%á\x0b'  PRIV(owner='WM/WMContentID', data=b'\x90~z\x04\xf7l\xf9@\x8enp\xac\x8c%\xe1\x0b')
'TALB' (Album/Movie/Show title)                     'Progsoup 39'
'TBPM' (BPM (beats per minute))                     '133.140'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Marianas'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mercury Program'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Tiger Style'
'TRCK' (Track number/Position in set)               '45'
'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'                                   ['instrumental', 'math rock', 'indie', 'post rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.35 dB'
'TXXX:replaygain_track_peak'                        '0.540781'

========================== row from database ==========================
                                              'id'  1411874
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 39/2291 mercury program  - marianas.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  449
                                           'genre'  rock-cppex-progressive
                                        'filesize'  7188363
                                           'mtime'  1620737335
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 2291 mercury program marianas rock cppex progressive
                                      'tag_artist'  The Mercury Program
                                     'tag_release'  Progsoup 39
                                       'tag_title'  Marianas
                                             'bpm'  133.14
                                    'search_title'  'marianas':1
                                   'search_artist'  'mercury':2 'program':3 'the':1
                                  'search_release'  '39':2 'progsoup':1
                                     'search_rest'  '2291':3 'classicprogpsy':1 'cppex':8 'marianas':6 'mercury':4 'program':5 'progressive':9 'progsoup':2 'rock':7
                                    'search_combo'  '2291':9 '39':6C 'classicprogpsy':7 'cppex':14 'marianas':1A,12 'mercury':3B,10 'program':4B,11 'progressive':15 'progsoup':5C,8 'rock':13 'the':2B
                                    'tag_tracknum'  45
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'math rock', 'indie', 'post rock']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737334.8857694  (2021-05-11 14:48:54)
                             'size'  7188363