======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '186'
                                          'artist'  'Billy Murray & Premier Quartet'
                                     'text_people'  ''
                                         'release'  'Gennett  4541'
                                           'title'  'Dixie Is Dixie Once More -4-1919 Gennett'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1919'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '121.409'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            'Sound edited by Breda4@hotmail'
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'GEOB:SfMarkers'                                    GEOB(encoding=<Encoding.LATIN1: 0>, mime='', filename='', desc='SfMarkers', data=b'\x0c\x00\x00\x00d\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Gennett  4541'
'TBPM' (BPM (beats per minute))                     '121.409'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1919'
'TIT2' (Title/songname/content description)         'Dixie Is Dixie Once More -4-1919 Gennett'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '186000'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Murray & Premier Quartet'
'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'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+0.75 dB'
'TXXX:replaygain_track_peak'                        '0.471558'

========================== row from database ==========================
                                              'id'  1432549
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1919/Billy Murray & Premier Quartet - Dixie Is Dixie Once More (Gennett) -4-1919.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  186
                                           'genre'  prerock-vocal
                                        'filesize'  3806939
                                           'mtime'  1620666299
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop (Gennett) prerock vocal
                                      'tag_artist'  Billy Murray & Premier Quartet
                                     'tag_release'  Gennett  4541
                                       'tag_title'  Dixie Is Dixie Once More -4-1919 Gennett
                                             'bpm'  121.409
                                    'search_title'  '1919':6 '4':5 '41919':7 'dixie':1 'gennett':8 'is':2 'more':4 'once':3
                                   'search_artist'  'billy':1 'murray':2 'premier':3 'quartet':4
                                  'search_release'  '4541':2 'gennett':1
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'gennett':6,7 'jazz':1 'oldies':3 'prerock':8 'vocal':9
                                    'search_combo'  '00oldiepop':19 '1919':6A '4':5A '41919':7A '4541':14C 'billy':9B 'country':18 'dixie':1A 'exotica':16 'gennett':8A,13C,20,21 'is':2A 'jazz':15 'more':4A 'murray':10B 'oldies':17 'once':3A 'premier':11B 'prerock':22 'quartet':12B 'vocal':23
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           '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-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1919
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666298.7746618  (2021-05-10 19:04:58)
                             'size'  3806939