======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '285'
                                          'artist'  ''
                                     'text_people'  ''
                                         'release'  'radio jazz 13'
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-3', "
 "'Q-CHART-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '113.4'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '113.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TKEY' (Initial key)                                '6B'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-6.99 dB'
'TXXX:replaygain_track_peak'                        '1.020021'

========================== row from database ==========================
                                              'id'  1482165
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Ralph MacDonald -  i cross my heart.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  285
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  9129537
                                           'mtime'  1620541526
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Ralph MacDonald cross my heart prerock jb unsorted
                                      'tag_artist'  None
                                     'tag_release'  radio jazz 13
                                       'tag_title'  None
                                             'bpm'  113.4
                                    'search_title'  None
                                   'search_artist'  None
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'cross':4 'donald':11 'heart':6 'jb':8 'mac':10 'macdonald':3 'my':5 'prerock':7 'ralph':2 'unsorted':9
                                    'search_combo'  '00poprockelectronic':3 'cross':6 'donald':13 'heart':8 'jazz':2C 'jb':10 'mac':12 'macdonald':5 'my':7 'prerock':9 'radio':1C 'ralph':4 'unsorted':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-4', 'q-piano-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541526.2628775  (2021-05-09 08:25:26)
                             'size'  9129537