======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '149'
                                          'artist'  'Bing Crosby'
                                     'text_people'  ''
                                         'release'  'Bing! His Legendary Years 1931 - 1957'
                                           'title'  'Dancing in the Dark'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
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                                      'lastfmtags'  "['crooners', 'jazz', 'christmas', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '24'
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing'
                                             'bpm'  '143.823'
                                             'key'  '2A'
                                        'acoustid'  '215637d1-a9a1-417a-bf3f-8c2d0c8d17e9'
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Bing! His Legendary Years 1931 - 1957'
'TBPM' (BPM (beats per minute))                     '143.823'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-swing'
'TDOR' (Original release time)                      '1993'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Dancing in the Dark'
'TKEY' (Initial key)                                '2A'
'TLEN' (Length)                                     '149442'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Bing Crosby'
'TPE2' (Band/orchestra/accompaniment)               'Bing Crosby'
'TPOS' (Part of a set)                              '1/4'
'TPUB' (Publisher)                                  'MCA Records'
'TRCK' (Track number/Position in set)               '8/24'
'TSO2'                                              'Crosby, Bing'
'TSOP' (Performer sort order)                       'Crosby, Bing'
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'TXXX:Acoustid Id'                                  '215637d1-a9a1-417a-bf3f-8c2d0c8d17e9'
'TXXX:CATALOGNUMBER'                                'MCAD4-10887'
'TXXX:MusicBrainz Album Artist Id'                  '2437980f-513a-44fc-80f1-b90d9d7fcf8f'
'TXXX:MusicBrainz Album Id'                         'd138cc06-1c76-4162-a981-c815995c784f'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
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'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['crooners', 'jazz', 'christmas', 'oldies', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+1.37 dB'
'TXXX:replaygain_track_peak'                        '0.595502'
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========================== row from database ==========================
                                              'id'  1533162
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/30_s collection/victor young & his brunswick orchestra, v=bing crosby - dancing in the dark 1931.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  149
                                           'genre'  prerock-jb-jazz-soft-swing
                                        'filesize'  2403359
                                           'mtime'  1620527980
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 30_s collection victor young & his brunswick orchestra, v=bing crosby dancing dark prerock jb jazz soft swing
                                      'tag_artist'  Bing Crosby
                                     'tag_release'  Bing! His Legendary Years 1931 - 1957
                                       'tag_title'  Dancing in the Dark
                                             'bpm'  143.823
                                    'search_title'  'dancing':1 'dark':4 'in':2 'the':3
                                   'search_artist'  'bing':1 'crosby':2
                                  'search_release'  '1931':5 '1957':6 'bing':1 'his':2 'legendary':3 'years':4
                                     'search_rest'  '30':5 'bing':15 'brunswick':11 'collection':7 'country':4 'crosby':16 'dancing':17 'dark':18 'exotica':2 'his':10 'jazz':1 'jb':20 'oldies':3 'orchestra':12,13 'prerock':19 's':6 'soft':21 'swing':22 'v':14 'victor':8 'young':9
                                    'search_combo'  '1931':11C '1957':12C '30':17 'bing':5B,7C,27 'brunswick':23 'collection':19 'country':16 'crosby':6B,28 'dancing':1A,29 'dark':4A,30 'exotica':14 'his':8C,22 'in':2A 'jazz':13 'jb':32 'legendary':9C 'oldies':15 'orchestra':24,25 'prerock':31 's':18 'soft':33 'swing':34 'the':3A 'v':26 'victor':20 'years':10C 'young':21
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['crooners', 'jazz', 'christmas', 'oldies', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527980.3812556  (2021-05-09 04:39:40)
                             'size'  2403359