======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '176'
                                          'artist'  'Charlie Kunz'
                                     'text_people'  ''
                                         'release'  'Rex  8916'
                                           'title'  'Did Your Mother Come From Ireland (vocal - Vera Lynn) \x1310-1936'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'american', 'need to rate', 'scrobbled from vinyl', '3 stars']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1936'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '112.383'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'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)                     'Rex  8916'
'TBPM' (BPM (beats per minute))                     '112.383'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1936'
'TIT2' (Title/songname/content description)         'Did Your Mother Come From Ireland (vocal - Vera Lynn) \x1310-1936'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '176000'
'TPE1' (Lead performer(s)/Soloist(s))               'Charlie Kunz'
'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:lastfmtags'                                   ['soundtrack', 'american', 'need to rate', 'scrobbled from vinyl', '3 stars']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.14 dB'
'TXXX:replaygain_track_peak'                        '0.657417'

========================== row from database ==========================
                                              'id'  1453362
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1936/Charlie Kunz - Did Your Mother Come From Ireland (vocal - Vera Lynn) –10-1936.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  176
                                           'genre'  prerock-swing
                                        'filesize'  3564541
                                           'mtime'  1620560852
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop –10 prerock swing
                                      'tag_artist'  Charlie Kunz
                                     'tag_release'  Rex  8916
                                       'tag_title'  Did Your Mother Come From Ireland (vocal - Vera Lynn) 10-1936
                                             'bpm'  112.383
                                    'search_title'  '10':12 '101936':14 '1936':13 'come':4 'did':1 'from':5 'ireland':6 'lynn':10,11 'mother':3 'vera':9 'vocal':7,8 'your':2
                                   'search_artist'  'charlie':1 'kunz':2
                                  'search_release'  '8916':2 'rex':1
                                     'search_rest'  '00oldiepop':5 '10':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'swing':8
                                    'search_combo'  '00oldiepop':23 '10':12A,24 '101936':14A '1936':13A '8916':18C 'charlie':15B 'come':4A 'country':22 'did':1A 'exotica':20 'from':5A 'ireland':6A 'jazz':19 'kunz':16B 'lynn':10A,11A 'mother':3A 'oldies':21 'prerock':25 'rex':17C 'swing':26 'vera':9A 'vocal':7A,8A 'your':2A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['soundtrack', 'american', 'need to rate', 'scrobbled from vinyl', '3 stars']
                                        'tag_date'  1936
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560851.563553  (2021-05-09 13:47:31)
                             'size'  3564541