======================== unified (from filesystem) ========================
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                                        'duration'  '239'
                                          'artist'  ''
                                     'text_people'  ''
                                         'release'  'radio jazz 13'
                                           'title'  'Oscar Pettiford - All The Things You Are'
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                             'musicbrainz_albumid'  ''
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                            'musicbrainz_artistid'  ''
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                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '105.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '105.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TIT2' (Title/songname/content description)         'Oscar Pettiford - All The Things You Are'
'TKEY' (Initial key)                                '6A'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '09'
'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'                                      '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.53 dB'
'TXXX:replaygain_track_peak'                        '0.923622'

========================== row from database ==========================
                                              'id'  1482013
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Oscar Pettiford - all the things you are.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  239
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  9579757
                                           'mtime'  1620541508
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic all the things you are prerock jb unsorted
                                      'tag_artist'  None
                                     'tag_release'  radio jazz 13
                                       'tag_title'  Oscar Pettiford - All The Things You Are
                                             'bpm'  105.2
                                    'search_title'  'all':3 'are':7 'oscar':1 'pettiford':2 'the':4 'things':5 'you':6
                                   'search_artist'  None
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'all':2 'are':6 'jb':8 'prerock':7 'the':3 'things':4 'unsorted':9 'you':5
                                    'search_combo'  '00poprockelectronic':10 'all':3A,11 'are':7A,15 'jazz':9C 'jb':17 'oscar':1A 'pettiford':2A 'prerock':16 'radio':8C 'the':4A,12 'things':5A,13 'unsorted':18 'you':6A,14
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541508.380779  (2021-05-09 08:25:08)
                             'size'  9579757