======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '129'
                                          'artist'  'Bessie Abott'
                                     'text_people'  ''
                                         'release'  'Edison Amberol B  56'
                                           'title'  "L' Ultima Rosa d' Estate (Flotow - Martha)"
                                           '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-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1907'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '145.5'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Edison Amberol B  56'
'TBPM' (BPM (beats per minute))                     '145.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1907'
'TIT2' (Title/songname/content description)         "L' Ultima Rosa d' Estate (Flotow - Martha)"
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '129000'
'TPE1' (Lead performer(s)/Soloist(s))               'Bessie Abott'
'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:discogstags'                                  'classical'
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.50 dB'
'TXXX:replaygain_track_peak'                        '0.369808'

========================== row from database ==========================
                                              'id'  1511115
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1907/Bessie Abott - L_ Ultima Rosa d_ Estate (Flotow - Martha) 1907.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  129
                                           'genre'  prerock-vocal
                                        'filesize'  2662547
                                           'mtime'  1620665927
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1907 L_ d_ 1907 prerock vocal
                                      'tag_artist'  Bessie Abott
                                     'tag_release'  Edison Amberol B  56
                                       'tag_title'  L' Ultima Rosa d' Estate (Flotow - Martha)
                                             'bpm'  145.5
                                    'search_title'  'd':5,6 'estate':7 'flotow':8,9 'l':1,2 'martha':10,11 'rosa':4 'ultima':3
                                   'search_artist'  'abott':2 'bessie':1
                                  'search_release'  '56':4 'amberol':2 'b':3 'edison':1
                                     'search_rest'  '00oldiepop':5 '1907':6 'country':4 'd':8 'exotica':2 'jazz':1 'l':7 'oldies':3 'prerock':9 'vocal':10
                                    'search_combo'  '00oldiepop':22 '1907':23 '56':17C 'abott':13B 'amberol':15C 'b':16C 'bessie':12B 'country':21 'd':5A,6A,25 'edison':14C 'estate':7A 'exotica':19 'flotow':8A,9A 'jazz':18 'l':1A,2A,24 'martha':10A,11A 'oldies':20 'prerock':26 'rosa':4A 'ultima':3A 'vocal':27
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           '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-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1907
                                     'discogstags'  ['classical']

============================== file details ==============================
                                           'mtime'  1620665927.1460087  (2021-05-10 18:58:47)
                             'size'  2662547