======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '159'
                                          'artist'  'Mae Questal (Betty Boop)'
                                     'text_people'  ''
                                         'release'  'Decca F 5849'
                                           'title'  'Animal Crackers In My Soup'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '145.895'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Decca F 5849'
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Animal Crackers In My Soup'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Mae Questal (Betty Boop)'
'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'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+2.37 dB'
'TXXX:replaygain_track_peak'                        '0.667433'

========================== row from database ==========================
                                              'id'  1443541
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1935/Mae Questal (Betty Boop) - Animal Crackers In My Soup 13-8-1935.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  159
                                           'genre'  prerock-vocal
                                        'filesize'  3186482
                                           'mtime'  1620666448
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1935 13 1935 prerock vocal
                                      'tag_artist'  Mae Questal (Betty Boop)
                                     'tag_release'  Decca F 5849
                                       'tag_title'  Animal Crackers In My Soup
                                             'bpm'  145.895
                                    'search_title'  'animal':1 'crackers':2 'in':3 'my':4 'soup':5
                                   'search_artist'  'betty':3,4 'boop':5,6 'mae':1 'questal':2
                                  'search_release'  '5849':3 'decca':1 'f':2
                                     'search_rest'  '00oldiepop':5 '1935':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'vocal':8
                                    'search_combo'  '00oldiepop':19 '1935':20 '5849':14C 'animal':1A 'betty':8B,9B 'boop':10B,11B 'country':18 'crackers':2A 'decca':12C 'exotica':16 'f':13C 'in':3A 'jazz':15 'mae':6B 'my':4A 'oldies':17 'prerock':21 'questal':7B 'soup':5A 'vocal':22
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           '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-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666448.195998  (2021-05-10 19:07:28)
                             'size'  3186482