======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '180'
                                          'artist'  'Ada Brown'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "That Ain't Right (+ Fats Waller)"
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-1', 'q-chart-1', 'q-drums-1', 'q-other-3', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'female vocalist', 'countries and continents', 'all', 'america']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '142.6'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '142.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         "That Ain't Right (+ Fats Waller)"
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '180000'
'TPE1' (Lead performer(s)/Soloist(s))               'Ada Brown'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'female vocalist', 'countries and continents', 'all', 'america']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.18 dB'
'TXXX:replaygain_track_peak'                        '0.464314'

========================== row from database ==========================
                                              'id'  1516848
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/Ada Brown - That Ain_t Right (+ Fats Waller) 1943.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  180
                                           'genre'  prerock-unsorted
                                        'filesize'  3649180
                                           'mtime'  1620386965
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 Ain_t 1943 prerock unsorted
                                      'tag_artist'  Ada Brown
                                     'tag_release'  None
                                       'tag_title'  That Ain't Right (+ Fats Waller)
                                             'bpm'  142.6
                                    'search_title'  'ain':2 'aint':4 'fats':6 'right':5 't':3 'that':1 'waller':7,8
                                   'search_artist'  'ada':1 'brown':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1943':6 'ain':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 't':8 'unsorted':10
                                    'search_combo'  '00oldiepop':15 '1943':16 'ada':9B 'ain':2A,17 'aint':4A 'brown':10B 'country':14 'exotica':12 'fats':6A 'jazz':11 'oldies':13 'prerock':19 'right':5A 't':3A,18 'that':1A 'unsorted':20 'waller':7A,8A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-piano-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'female vocalist', 'countries and continents', 'all', 'america']
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620386964.5472155  (2021-05-07 13:29:24)
                             'size'  3649180