======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '223'
                                          'artist'  'Penguin Cafe Orchestra'
                                     'text_people'  ''
                                         'release'  'Concert Program (disc 2)'
                                           'title'  'Oscar Tango'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-salon or easy'
                                             'bpm'  '123.331'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Concert Program (disc 2)'
'TBPM' (BPM (beats per minute))                     '123.331'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-salon or easy'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Oscar Tango'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Penguin Cafe Orchestra'
'TRCK' (Track number/Position in set)               '4'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MusicMagic Data'                              'AgEAETJEmcvHPqBugAHncz3T5UWEjYACD96ZUxaagHHHUqvkgAH6WKw0gAGsVIABhMOAAbQsY/7NPYABgAGrpQTK1Y6AAZ3pgAKAAZn5uECnrIIq2uYry8gUhoiAQQcmmqMb6oCizWCVSYLz+3GseYZ8tK6ACIbEgAG5vkTH2bqeCIABqUsDpeZ1inijaIHggAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.54 dB'
'TXXX:replaygain_track_peak'                        '0.909223'

========================== row from database ==========================
                                              'id'  671522
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Penguin Cafe Orchestra/13. Oscar Tango.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  223
                                           'genre'  prerock-jb-jazz-soft-salon or easy
                                        'filesize'  5360861
                                           'mtime'  1620574014
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 13. prerock jb jazz soft salon or easy
                                      'tag_artist'  Penguin Cafe Orchestra
                                     'tag_release'  Concert Program (disc 2)
                                       'tag_title'  Oscar Tango
                                             'bpm'  123.331
                                    'search_title'  'oscar':1 'tango':2
                                   'search_artist'  'cafe':2 'orchestra':3 'penguin':1
                                  'search_release'  '2':5,6 'concert':1 'disc':3,4 'program':2
                                     'search_rest'  '13':5,6 'country':4 'easy':12 'exotica':2 'jazz':1 'jb':8 'oldies':3 'or':11 'prerock':7 'salon':10 'soft':9
                                    'search_combo'  '13':16,17 '2':10C,11C 'cafe':4B 'concert':6C 'country':15 'disc':8C,9C 'easy':23 'exotica':13 'jazz':12 'jb':19 'oldies':14 'or':22 'orchestra':5B 'oscar':1A 'penguin':3B 'prerock':18 'program':7C 'salon':21 'soft':20 'tango':2A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620574014.2729554  (2021-05-09 17:26:54)
                             'size'  5360861