======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '158'
                                          'artist'  'Lil Armstrong '
                                     'text_people'  'Avon/Lil Armstrong'
                                         'release'  '1936-1940'
                                           'title'  'When I Went Back Home'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'oldies', 'vocal jazz', 'acoustic', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal'
                                             'bpm'  '89.217'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'PRIV:WM/WMCollectionID:\x8df\x01d\x013&I\x8bÕ\x0cÝ\x88s -'  PRIV(owner='WM/WMCollectionID', data=b'\x8df\x01d\x013&I\x8b\xd5\x0c\xdd\x88s -')
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'TALB' (Album/Movie/Show title)                     '1936-1940'
'TBPM' (BPM (beats per minute))                     '89.217'
'TCOM' (Composer)                                   'Avon/Lil Armstrong'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-vocal'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'When I Went Back Home'
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '158502'
'TPE1' (Lead performer(s)/Soloist(s))               'Lil Armstrong'
'TPE2' (Band/orchestra/accompaniment)               'Lil Armstrong '
'TPUB' (Publisher)                                  'Classics'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'oldies', 'vocal jazz', 'acoustic', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.91 dB'
'TXXX:replaygain_track_peak'                        '0.427263'

========================== row from database ==========================
                                              'id'  1533455
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/30_s collection/lil armstrong - when i went back home 1936-1940.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  158
                                           'genre'  prerock-jb-jazz-vocal
                                        'filesize'  2546673
                                           'mtime'  1620527908
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 30_s collection lil armstrong when went back home prerock jb jazz vocal
                                      'tag_artist'  Lil Armstrong 
                                     'tag_release'  1936-1940
                                       'tag_title'  When I Went Back Home
                                             'bpm'  89.217
                                    'search_title'  'back':4 'home':5 'i':2 'went':3 'when':1
                                   'search_artist'  'armstrong':2 'lil':1
                                  'search_release'  '1936':1 '19361940':3 '1940':2
                                     'search_rest'  '30':5 'armstrong':9 'back':12 'collection':7 'country':4 'exotica':2 'home':13 'jazz':1 'jb':15 'lil':8 'oldies':3 'prerock':14 's':6 'vocal':16 'went':11 'when':10
                                    'search_combo'  '1936':8C '19361940':10C '1940':9C '30':15 'armstrong':7B,19 'back':4A,22 'collection':17 'country':14 'exotica':12 'home':5A,23 'i':2A 'jazz':11 'jb':25 'lil':6B,18 'oldies':13 'prerock':24 's':16 'vocal':26 'went':3A,21 'when':1A,20
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'oldies', 'vocal jazz', 'acoustic', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527908.3556213  (2021-05-09 04:38:28)
                             'size'  2546673