======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '259'
                                          'artist'  'Billy Jones & Ernest Hare'
                                     'text_people'  ''
                                         'release'  'Edison 51415 (9758)'
                                           'title'  "Oh You Can't Fool An Old Horse Fly"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['perfect', 'vaudeville', '1920s', 'all', 'acoustic era']"
                                     'discogstags'  "['novelty', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1924'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '104.931'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Edison 51415 (9758)'
'TBPM' (BPM (beats per minute))                     '104.931'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1924'
'TIT2' (Title/songname/content description)         "Oh You Can't Fool An Old Horse Fly"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Jones & Ernest Hare'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['novelty', 'pop']
'TXXX:lastfmtags'                                   ['perfect', 'vaudeville', '1920s', 'all', 'acoustic era']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.22 dB'
'TXXX:replaygain_track_peak'                        '0.527056'

========================== row from database ==========================
                                              'id'  1504247
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1924/Billy Jones & Ernest Hare - Oh You Can_t Fool An Old Horse Fly 1-10-1924.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  259
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  5195476
                                           'mtime'  1620525519
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1924 Can_t 10 1924 prerock jb jazz unsorted
                                      'tag_artist'  Billy Jones & Ernest Hare
                                     'tag_release'  Edison 51415 (9758)
                                       'tag_title'  Oh You Can't Fool An Old Horse Fly
                                             'bpm'  104.931
                                    'search_title'  'an':7 'can':3 'cant':5 'fly':10 'fool':6 'horse':9 'oh':1 'old':8 't':4 'you':2
                                   'search_artist'  'billy':1 'ernest':3 'hare':4 'jones':2
                                  'search_release'  '51415':2 '9758':3,4 'edison':1
                                     'search_rest'  '00oldiepop':5 '1924':6 'can':7 'country':4 'exotica':2 'jazz':1 'jb':10 'oldies':3 'prerock':9 't':8 'unsorted':11
                                    'search_combo'  '00oldiepop':23 '1924':24 '51415':16C '9758':17C,18C 'an':7A 'billy':11B 'can':3A,25 'cant':5A 'country':22 'edison':15C 'ernest':13B 'exotica':20 'fly':10A 'fool':6A 'hare':14B 'horse':9A 'jazz':19 'jb':28 'jones':12B 'oh':1A 'old':8A 'oldies':21 'prerock':27 't':4A,26 'unsorted':29 'you':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', '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-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['perfect', 'vaudeville', '1920s', 'all', 'acoustic era']
                                        'tag_date'  1924
                                     'discogstags'  ['novelty', 'pop']

============================== file details ==============================
                                           'mtime'  1620525519.245931  (2021-05-09 03:58:39)
                             'size'  5195476