======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '174'
                                          'artist'  'Sammy Kaye & His Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '034 Taking a chance on love - Sammy Kaye & His Orchestra (24-04-1943)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', "
 "'q-play-2', 'Q-JZFKS-2', 'Q-OLDST-1', 'q-chart-2', 'q-drums-1', 'q-other-4', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['jazz', 'swing', '50s', 'metro jazz', 'the now sound']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '34'
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '143.517'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '143.517'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         '034 Taking a chance on love - Sammy Kaye & His Orchestra (24-04-1943)'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sammy Kaye & His Orchestra'
'TRCK' (Track number/Position in set)               '34'
'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'                                   ['jazz', 'swing', '50s', 'metro jazz', 'the now sound']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.91 dB'
'TXXX:replaygain_track_peak'                        '0.650966'

========================== row from database ==========================
                                              'id'  1455329
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/034 Taking a chance on love - Sammy Kaye & His Orchestra (24-04-1943).mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  174
                                           'genre'  prerock-swing
                                        'filesize'  2093829
                                           'mtime'  1620561810
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop prerock swing
                                      'tag_artist'  Sammy Kaye & His Orchestra
                                     'tag_release'  None
                                       'tag_title'  034 Taking a chance on love - Sammy Kaye & His Orchestra (24-04-1943)
                                             'bpm'  143.517
                                    'search_title'  '04':11 '1943':12 '24':10 '24041943':13 'a':2 'chance':3 'his':8 'kaye':7 'love':5 'on':4 'orchestra':9 'sammy':6 'taking':1
                                   'search_artist'  'his':3 'kaye':2 'orchestra':4 'sammy':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'swing':7
                                    'search_combo'  '00oldiepop':22 '04':11A '1943':12A '24':10A '24041943':13A 'a':2A 'chance':3A 'country':21 'exotica':19 'his':8A,16B 'jazz':18 'kaye':7A,15B 'love':5A 'oldies':20 'on':4A 'orchestra':9A,17B 'prerock':23 'sammy':6A,14B 'swing':24 'taking':1A
                                    'tag_tracknum'  34
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'swing', '50s', 'metro jazz', 'the now sound']
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561809.7113893  (2021-05-09 14:03:29)
                             'size'  2093829