======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '130'
                                          'artist'  'Edison Mixed Quartet & Frederick Wheeler'
                                     'text_people'  ''
                                         'release'  'Edison  9827'
                                           'title'  "My Mother's Prayer"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', '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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1908'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '144.0'
                                             'key'  '10B'
                                        '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  9827'
'TBPM' (BPM (beats per minute))                     '144.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1908'
'TIT2' (Title/songname/content description)         "My Mother's Prayer"
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '130000'
'TPE1' (Lead performer(s)/Soloist(s))               'Edison Mixed Quartet & Frederick Wheeler'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.32 dB'
'TXXX:replaygain_track_peak'                        '0.646979'

========================== row from database ==========================
                                              'id'  1496396
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1908/Edison Mixed Quartet - My Mother_s Prayer (+ Frederick Wheeler) 1908.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  130
                                           'genre'  prerock-band
                                        'filesize'  2663362
                                           'mtime'  1620558740
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1908 Mother_s (+ Wheeler) 1908 prerock band
                                      'tag_artist'  Edison Mixed Quartet & Frederick Wheeler
                                     'tag_release'  Edison  9827
                                       'tag_title'  My Mother's Prayer
                                             'bpm'  144.0
                                    'search_title'  'mother':2 'mothers':4 'my':1 'prayer':5 's':3
                                   'search_artist'  'edison':1 'frederick':4 'mixed':2 'quartet':3 'wheeler':5
                                  'search_release'  '9827':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '1908':6 'band':12 'country':4 'exotica':2 'jazz':1 'mother':7 'oldies':3 'prerock':11 's':8 'wheeler':9,10
                                    'search_combo'  '00oldiepop':17 '1908':18 '9827':12C 'band':24 'country':16 'edison':6B,11C 'exotica':14 'frederick':9B 'jazz':13 'mixed':7B 'mother':2A,19 'mothers':4A 'my':1A 'oldies':15 'prayer':5A 'prerock':23 'quartet':8B 's':3A,20 'wheeler':10B,21,22
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10B
                                           '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-2', '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'  1908
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620558739.9485998  (2021-05-09 13:12:19)
                             'size'  2663362