======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '173'
                                          'artist'  'Danny Polo Swing Stars'
                                     'text_people'  ''
                                         'release'  'Decca F 6550'
                                           'title'  "That's A Plenty"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '120.614'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Decca F 6550'
'TBPM' (BPM (beats per minute))                     '120.614'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1937'
'TIT2' (Title/songname/content description)         "That's A Plenty"
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Danny Polo Swing Stars'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.38 dB'
'TXXX:replaygain_track_peak'                        '0.464683'

========================== row from database ==========================
                                              'id'  1496747
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1937/Danny Polo Swing Stars - That_s A Plenty 1-10-1937.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  173
                                           'genre'  prerock-unsorted
                                        'filesize'  3462962
                                           'mtime'  1621698002
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1937 That_s 1 10 1937 prerock unsorted
                                      'tag_artist'  Danny Polo Swing Stars
                                     'tag_release'  Decca F 6550
                                       'tag_title'  That's A Plenty
                                             'bpm'  120.614
                                    'search_title'  'a':4 'plenty':5 's':2 'that':1 'thats':3
                                   'search_artist'  'danny':1 'polo':2 'stars':4 'swing':3
                                  'search_release'  '6550':3 'decca':1 'f':2
                                     'search_rest'  '00oldiepop':5 '1':9 '1937':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':10 's':8 'that':7 'unsorted':11
                                    'search_combo'  '00oldiepop':17 '1':21 '1937':18 '6550':12C 'a':4A 'country':16 'danny':6B 'decca':10C 'exotica':14 'f':11C 'jazz':13 'oldies':15 'plenty':5A 'polo':7B 'prerock':22 's':2A,20 'stars':9B 'swing':8B 'that':1A,19 'thats':3A 'unsorted':23
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1937
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698001.6483932  (2021-05-22 17:40:01)
                             'size'  3462962