======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '174'
                                          'artist'  'Cootie Williams'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Blues A Poppin'"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazztrumpet', 'jazz', 'trumpet', 'cootie', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1939'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted;mi-trumpet'
                                             'bpm'  '112.6'
                                             'key'  '3A'
                                        '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))                     '112.6'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-unsorted', 'mi-trumpet']
'TDRC' (Recording time)                             '1939-06-22'
'TIT2' (Title/songname/content description)         "Blues A Poppin'"
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '174000'
'TPE1' (Lead performer(s)/Soloist(s))               'Cootie Williams'
'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'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazztrumpet', 'jazz', 'trumpet', 'cootie', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.02 dB'
'TXXX:replaygain_track_peak'                        '0.535897'

========================== row from database ==========================
                                              'id'  1505392
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1939/Cootie Williams (Ellington) - Blues A Poppin_ 22-6-1939.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  174
                                           'genre'  prerock-jb-jazz-unsorted;mi-trumpet
                                        'filesize'  3529092
                                           'mtime'  1620527992
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1939 (Ellington) Poppin_ 22 6 1939 prerock jb jazz unsorted;mi trumpet
                                      'tag_artist'  Cootie Williams
                                     'tag_release'  None
                                       'tag_title'  Blues A Poppin'
                                             'bpm'  112.6
                                    'search_title'  'a':2 'blues':1 'poppin':3,4
                                   'search_artist'  'cootie':1 'williams':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1939':6 '22':10 '6':11 'country':4 'ellington':7,8 'exotica':2 'jazz':1 'jb':13 'mi':15,17 'oldies':3 'poppin':9 'prerock':12 'trumpet':18 'unsorted':14,16
                                    'search_combo'  '00oldiepop':11 '1939':12 '22':16 '6':17 'a':2A 'blues':1A 'cootie':5B 'country':10 'ellington':13,14 'exotica':8 'jazz':7 'jb':19 'mi':21,23 'oldies':9 'poppin':3A,4A,15 'prerock':18 'trumpet':24 'unsorted':20,22 'williams':6B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['jazztrumpet', 'jazz', 'trumpet', 'cootie', 'swing']
                                        'tag_date'  1939
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620527991.5419762  (2021-05-09 04:39:51)
                             'size'  3529092