======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '150'
                                          'artist'  'Cliff Edwards'
                                     'text_people'  ''
                                         'release'  "20 #1 Hits Of The '20S"
                                           'title'  "Singin' In The Rain"
                                           'quals'  ("['Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-3', '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'  "['soundtrack', '20s', 'jazz', 'disney', 'ukulele']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1925'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '142.910'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "20 #1 Hits Of The '20S"
'TBPM' (BPM (beats per minute))                     '142.910'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1925'
'TIT2' (Title/songname/content description)         "Singin' In The Rain"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cliff Edwards'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soundtrack', '20s', 'jazz', 'disney', 'ukulele']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'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'                        '+1.64 dB'
'TXXX:replaygain_track_peak'                        '0.689991'

========================== row from database ==========================
                                              'id'  1501044
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Cliff Edwards - Singin_ In The Rain.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  150
                                           'genre'  prerock-vocal
                                        'filesize'  2411068
                                           'mtime'  1620384481
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular Singin_ prerock vocal
                                      'tag_artist'  Cliff Edwards
                                     'tag_release'  20 #1 Hits Of The '20S
                                       'tag_title'  Singin' In The Rain
                                             'bpm'  142.91
                                    'search_title'  'in':3 'rain':5 'singin':1,2 'the':4
                                   'search_artist'  'cliff':1 'edwards':2
                                  'search_release'  '1':2,3 '20':1 '20s':7,8 'hits':4 'of':5 'the':6
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':8 'and':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'popular':9 'prerock':11 'singin':10 'vocal':12
                                    'search_combo'  '00oldiepop':20 '1':9C,10C '1920s':21 '1930s':23 '20':8C '20s':14C,15C 'and':22 'cliff':6B 'country':19 'edwards':7B 'exotica':17 'hits':11C 'in':3A 'jazz':16 'of':12C 'oldies':18 'popular':24 'prerock':26 'rain':5A 'singin':1A,2A,25 'the':4A,13C 'vocal':27
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  6A
                                           '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-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['soundtrack', '20s', 'jazz', 'disney', 'ukulele']
                                        'tag_date'  1925
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620384481.0523043  (2021-05-07 12:48:01)
                             'size'  2411068