======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '191'
                                          'artist'  'James P Johnson'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "You Can't Do What My Last Man Did"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'ragtime', 'piano', 'stride', 'jazz piano']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1923'
                                        'comments'  ''
                                           'genre'  'prerock-ragtime'
                                             'bpm'  '145.7'
                                             'key'  '4A'
                                        '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))                     '145.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-ragtime'
'TDRC' (Recording time)                             '1923-07-17'
'TIT2' (Title/songname/content description)         "You Can't Do What My Last Man Did"
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '191000'
'TPE1' (Lead performer(s)/Soloist(s))               'James P Johnson'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'ragtime', 'piano', 'stride', 'jazz piano']
'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'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.57 dB'
'TXXX:replaygain_track_peak'                        '0.569769'

========================== row from database ==========================
                                              'id'  1505160
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1923/James P Johnson - You Can_t Do What My Last Man Did 17-7-1923.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  191
                                           'genre'  prerock-ragtime
                                        'filesize'  3874383
                                           'mtime'  1620527212
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1923 Can_t 17 7 1923 prerock ragtime
                                      'tag_artist'  James P Johnson
                                     'tag_release'  None
                                       'tag_title'  You Can't Do What My Last Man Did
                                             'bpm'  145.7
                                    'search_title'  'can':2 'cant':4 'did':10 'do':5 'last':8 'man':9 'my':7 't':3 'what':6 'you':1
                                   'search_artist'  'james':1 'johnson':3 'p':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1923':6 '7':9 'can':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':10 'ragtime':11 't':8
                                    'search_combo'  '00oldiepop':18 '1923':19 '7':22 'can':2A,20 'cant':4A 'country':17 'did':10A 'do':5A 'exotica':15 'james':11B 'jazz':14 'johnson':13B 'last':8A 'man':9A 'my':7A 'oldies':16 'p':12B 'prerock':23 'ragtime':24 't':3A,21 'what':6A 'you':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'ragtime', 'piano', 'stride', 'jazz piano']
                                        'tag_date'  1923
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527211.6518118  (2021-05-09 04:26:51)
                             'size'  3874383