======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '178'
                                          'artist'  'Kay Kyser & His Orchestra'
                                     'text_people'  ''
                                         'release'  'dlb Col hco 900'
                                           'title'  '008 Moonlight mood - Kay Kyser & His Orchestra (20-02-1943)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spotify', 'big band', 'jazz', '40s', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '132.617'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'dlb Col hco 900'
'TBPM' (BPM (beats per minute))                     '132.617'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         '008 Moonlight mood - Kay Kyser & His Orchestra (20-02-1943)'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kay Kyser & His Orchestra'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['spotify', 'big band', 'jazz', '40s', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                        '+2.40 dB'
'TXXX:replaygain_track_peak'                        '0.498486'

========================== row from database ==========================
                                              'id'  1455140
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/008 Moonlight mood - Kay Kyser & His Orchestra (20-02-1943).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  178
                                           'genre'  prerock-swing
                                        'filesize'  2851409
                                           'mtime'  1620561810
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop prerock swing
                                      'tag_artist'  Kay Kyser & His Orchestra
                                     'tag_release'  dlb Col hco 900
                                       'tag_title'  008 Moonlight mood - Kay Kyser & His Orchestra (20-02-1943)
                                             'bpm'  132.617
                                    'search_title'  '02':8 '1943':9 '20':7 '20021943':10 'his':5 'kay':3 'kyser':4 'mood':2 'moonlight':1 'orchestra':6
                                   'search_artist'  'his':3 'kay':1 'kyser':2 'orchestra':4
                                  'search_release'  '900':4 'col':2 'dlb':1 'hco':3
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'swing':7
                                    'search_combo'  '00oldiepop':23 '02':8A '1943':9A '20':7A '20021943':10A '900':18C 'col':16C 'country':22 'dlb':15C 'exotica':20 'hco':17C 'his':5A,13B 'jazz':19 'kay':3A,11B 'kyser':4A,12B 'mood':2A 'moonlight':1A 'oldies':21 'orchestra':6A,14B 'prerock':24 'swing':25
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  7A
                                           '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-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['spotify', 'big band', 'jazz', '40s', 'swing']
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561809.7035582  (2021-05-09 14:03:29)
                             'size'  2851409