======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '199'
                                          'artist'  'Django Reinhardt'
                                     'text_people'  'Django Reinhardt/Stephane Grappelli'
                                         'release'  'The Hot Club Of France'
                                           'title'  'Swing 39'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
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                                      'lastfmtags'  "['guitar', 'gypsy jazz', 'jazz', 'jazz guitar', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '94.768'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Hot Club Of France'
'TBPM' (BPM (beats per minute))                     '94.768'
'TCOM' (Composer)                                   'Django Reinhardt/Stephane Grappelli'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Swing 39'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Django Reinhardt & Stephane Grappelli'
'TPE2' (Band/orchestra/accompaniment)               'Django Reinhardt'
'TPUB' (Publisher)                                  'Happy Days'
'TRCK' (Track number/Position in set)               '5'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80.04, LAME dll 3.89, 192 Kbit/s, Stereo, High quality'
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'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['guitar', 'gypsy jazz', 'jazz', 'jazz guitar', 'swing']
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'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.68 dB'
'TXXX:replaygain_track_peak'                        '0.692645'

========================== row from database ==========================
                                              'id'  1277330
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Django Reinhardt/The Hot Club Of France/05 - [the hot club of france] - swing 39.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  199
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  4797554
                                           'mtime'  1620528489
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 05 [the hot club of france] swing prerock jb jazz unsorted
                                      'tag_artist'  Django Reinhardt
                                     'tag_release'  The Hot Club Of France
                                       'tag_title'  Swing 39
                                             'bpm'  94.768
                                    'search_title'  '39':2 'swing':1
                                   'search_artist'  'django':1 'reinhardt':2
                                  'search_release'  'club':3 'france':5 'hot':2 'of':4 'the':1
                                     'search_rest'  'club':8 'country':4 'exotica':2 'france':10,11 'hot':7 'jazz':1 'jb':14 'of':9 'oldies':3 'prerock':13 'swing':12 'the':5,6 'unsorted':15
                                    'search_combo'  '39':2A 'club':7C,17 'country':13 'django':3B 'exotica':11 'france':9C,19,20 'hot':6C,16 'jazz':10 'jb':23 'of':8C,18 'oldies':12 'prerock':22 'reinhardt':4B 'swing':1A,21 'the':5C,14,15 'unsorted':24
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['guitar', 'gypsy jazz', 'jazz', 'jazz guitar', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528489.3939624  (2021-05-09 04:48:09)
                             'size'  4797554