======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '115'
                                          'artist'  'Patience & Prudence'
                                     'text_people'  ''
                                         'release'  'Treasured Tunes, Vol. 8'
                                           'title'  'Tonight You Belong To Me'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
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 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  '["50\'s", \'jazz\', \'female vocalists\', \'50s\', \'oldies\']'
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '033'
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '108.297'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:WM/WMCollectionGroupID:¯CÏiWWtNªÌ\x06ñß[oÐ'   PRIV(owner='WM/WMCollectionGroupID', data=b'\xafC\xcfiWWtN\xaa\xcc\x06\xf1\xdf[o\xd0')
'PRIV:WM/WMCollectionID:¯CÏiWWtNªÌ\x06ñß[oÐ'        PRIV(owner='WM/WMCollectionID', data=b'\xafC\xcfiWWtN\xaa\xcc\x06\xf1\xdf[o\xd0')
"PRIV:WM/WMContentID:Ö+ªÈÆعA¥'»HÙ]@Í"              PRIV(owner='WM/WMContentID', data=b"\xd6+\xaa\xc8\xc6\xd8\xb9A\xa5'\xbbH\xd9]@\xcd")
'TALB' (Album/Movie/Show title)                     'Treasured Tunes, Vol. 8'
'TBPM' (BPM (beats per minute))                     '108.297'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1956'
'TIT2' (Title/songname/content description)         'Tonight You Belong To Me'
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '115893'
'TPE1' (Lead performer(s)/Soloist(s))               'Patience & Prudence'
'TPUB' (Publisher)                                  'Stardust'
'TRCK' (Track number/Position in set)               '033'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ["50's", 'jazz', 'female vocalists', '50s', 'oldies']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.10 dB'
'TXXX:replaygain_track_peak'                        '0.493964'

========================== row from database ==========================
                                              'id'  1445929
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/1956-033 - Patience & Prudence - Tonight You Belong To Me.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  115
                                           'genre'  prerock-unsorted
                                        'filesize'  4637858
                                           'mtime'  1620387564
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 1956 033 prerock unsorted
                                      'tag_artist'  Patience & Prudence
                                     'tag_release'  Treasured Tunes, Vol. 8
                                       'tag_title'  Tonight You Belong To Me
                                             'bpm'  108.297
                                    'search_title'  'belong':3 'me':5 'to':4 'tonight':1 'you':2
                                   'search_artist'  'patience':1 'prudence':2
                                  'search_release'  '8':6 'treasured':1 'tunes':2,3 'vol':4,5
                                     'search_rest'  '00oldiepop':5 '1956':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'unsorted':8
                                    'search_combo'  '00oldiepop':18 '1956':19 '8':13C 'belong':3A 'country':17 'exotica':15 'jazz':14 'me':5A 'oldies':16 'patience':6B 'prerock':20 'prudence':7B 'to':4A 'tonight':1A 'treasured':8C 'tunes':9C,10C 'unsorted':21 'vol':11C,12C 'you':2A
                                    'tag_tracknum'  33
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ["50's", 'jazz', 'female vocalists', '50s', 'oldies']
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387564.058592  (2021-05-07 13:39:24)
                             'size'  4637858