======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '69'
                                          'artist'  'Irving Berlin'
                                     'text_people'  ''
                                         'release'  'Easter Parade'
                                           'title'  'This Is The Life (Dog Act) Instrumental'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'swing', 'broadway', 'musicals', 'showtunes']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1948'
                                        'comments'  ''
                                           'genre'  'prerock-soundtrack'
                                             'bpm'  '105.477'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Easter Parade'
'TBPM' (BPM (beats per minute))                     '105.477'
'TCON' (Content type, a.k.a. Genre)                 'prerock-soundtrack'
'TDRC' (Recording time)                             '1948'
'TIT2' (Title/songname/content description)         'This Is The Life (Dog Act) Instrumental'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Irving Berlin'
'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', 'broadway', 'musicals', 'showtunes']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'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'                        '-0.50 dB'
'TXXX:replaygain_track_peak'                        '0.559195'

========================== row from database ==========================
                                              'id'  1503778
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1948/Soundtrack _ Easter Parade _ - This Is The Life (Dog Act) Instrumental 1948.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  69
                                           'genre'  prerock-soundtrack
                                        'filesize'  1392453
                                           'mtime'  1620531732
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1948 Soundtrack _ _ 1948 prerock soundtrack
                                      'tag_artist'  Irving Berlin
                                     'tag_release'  Easter Parade
                                       'tag_title'  This Is The Life (Dog Act) Instrumental
                                             'bpm'  105.477
                                    'search_title'  'act':7,8 'dog':5,6 'instrumental':9 'is':2 'life':4 'the':3 'this':1
                                   'search_artist'  'berlin':2 'irving':1
                                  'search_release'  'easter':1 'parade':2
                                     'search_rest'  '00oldiepop':5 '1948':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'soundtrack':7
                                    'search_combo'  '00oldiepop':18 '1948':19 'act':7A,8A 'berlin':11B 'country':17 'dog':5A,6A 'easter':12C 'exotica':15 'instrumental':9A 'irving':10B 'is':2A 'jazz':14 'life':4A 'oldies':16 'parade':13C 'prerock':21 'soundtrack':20 'the':3A 'this':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           '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-2', 'q-busy-2', 'q-drums-4', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'swing', 'broadway', 'musicals', 'showtunes']
                                        'tag_date'  1948
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620531731.9325674  (2021-05-09 05:42:11)
                             'size'  1392453