======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '175'
                                          'artist'  'Kate Smith'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Rose O' Day (The Filla-Da-Gusha Song)"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['female vocalists', 'american', '40s', 'all', 'female popular vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1941'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '85.634'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '85.634'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1941'
'TIT2' (Title/songname/content description)         "Rose O' Day (The Filla-Da-Gusha Song)"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kate Smith'
'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:lastfmtags'                                   ['female vocalists', 'american', '40s', 'all', 'female popular vocal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.10 dB'
'TXXX:replaygain_track_peak'                        '0.550781'

========================== row from database ==========================
                                              'id'  1502398
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1941/Kate Smith - Rose O_ Day (The Filla-Da-Gusha Song) 30-10-1941.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  175
                                           'genre'  prerock-vocal
                                        'filesize'  3501874
                                           'mtime'  1620666493
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1941 O_ 30 10 1941 prerock vocal
                                      'tag_artist'  Kate Smith
                                     'tag_release'  None
                                       'tag_title'  Rose O' Day (The Filla-Da-Gusha Song)
                                             'bpm'  85.634
                                    'search_title'  'da':8 'day':4 'filla':7 'filladagusha':10 'gusha':9 'o':2,3 'rose':1 'song':11,12 'the':5,6
                                   'search_artist'  'kate':1 'smith':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1941':6 '30':8 'country':4 'exotica':2 'jazz':1 'o':7 'oldies':3 'prerock':9 'vocal':10
                                    'search_combo'  '00oldiepop':19 '1941':20 '30':22 'country':18 'da':8A 'day':4A 'exotica':16 'filla':7A 'filladagusha':10A 'gusha':9A 'jazz':15 'kate':13B 'o':2A,3A,21 'oldies':17 'prerock':23 'rose':1A 'smith':14B 'song':11A,12A 'the':5A,6A 'vocal':24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           '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-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['female vocalists', 'american', '40s', 'all', 'female popular vocal']
                                        'tag_date'  1941
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666492.7335625  (2021-05-10 19:08:12)
                             'size'  3501874