======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '755'
                                          'artist'  'Henry Burr & Lt Gitz Rice'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Life In A Trench In Belgium 26-1-1918 (12 Min)'
                                           '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1918'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '120.0'
                                             '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'
'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '120.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1918'
'TIT2' (Title/songname/content description)         'Life In A Trench In Belgium 26-1-1918 (12 Min)'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Henry Burr & Lt Gitz Rice'
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.73 dB'
'TXXX:replaygain_track_peak'                        '0.707446'

========================== row from database ==========================
                                              'id'  1464073
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1918/Henry Burr & Lt Gitz Rice - Life In A Trench In Belgium 26-1-1918.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  755
                                           'genre'  prerock-vocal
                                        'filesize'  15223157
                                           'mtime'  1620666286
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop prerock vocal
                                      'tag_artist'  Henry Burr & Lt Gitz Rice
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Life In A Trench In Belgium 26-1-1918 (12 Min)
                                             'bpm'  120.0
                                    'search_title'  '1':7 '12':10,11 '1918':8 '26':6 '2611918':9 'a':3 'belgium':5 'in':2 'life':1 'min':12,13 'trench':4
                                   'search_artist'  'burr':2 'gitz':4 'henry':1 'lt':3 'rice':5
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'vocal':7
                                    'search_combo'  '00oldiepop':28 '1':7A '12':10A,11A '1918':8A '26':6A '2611918':9A 'a':3A 'album':20C 'belgium':5A 'burr':15B 'country':27 'exotica':25 'gitz':17B 'henry':14B 'in':2A 'jazz':24 'life':1A 'lt':16B 'min':12A,13A 'non':19C 'nonalbum':21C 'oldies':26 'prerock':29 'rice':18B 'tracks':22C,23C 'trench':4A 'vocal':30
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  3A
                                           '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-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1918
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666285.9007146  (2021-05-10 19:04:45)
                             'size'  15223157