======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '358'
                                          'artist'  'Jazz Weekend'
                                     'text_people'  'Nicholas Brodszky/Sammy Cahn'
                                         'release'  'radio jazz 13'
                                           'title'  'Alan / Foster Broadbent  Gary / Wonder Why'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
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 "'Q-CHART-2', 'q-drums-1', 'q-other-3', 'q-piano-4', 'q-vocals-1', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '142.0'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '142.0'
'TCOM' (Composer)                                   'Nicholas Brodszky/Sammy Cahn'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Alan / Foster Broadbent  Gary / Wonder Why'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jazz Weekend'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Concord'
'TRCK' (Track number/Position in set)               '04'
'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'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.11 dB'
'TXXX:replaygain_track_peak'                        '1.008859'

========================== row from database ==========================
                                              'id'  1482346
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Alan Foster & Gary Broadbent - wonder why.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  358
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  14366891
                                           'mtime'  1636300899
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic & wonder why prerock jb unsorted
                                      'tag_artist'  Jazz Weekend
                                     'tag_release'  radio jazz 13
                                       'tag_title'  Alan / Foster Broadbent  Gary / Wonder Why
                                             'bpm'  142.0
                                    'search_title'  'alan':1 'broadbent':3 'foster':2 'gary':4 'why':6 'wonder':5
                                   'search_artist'  'jazz':1 'weekend':2
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'jb':5 'prerock':4 'unsorted':6 'why':3 'wonder':2
                                    'search_combo'  '00poprockelectronic':11 'alan':1A 'broadbent':3A 'foster':2A 'gary':4A 'jazz':7B,10C 'jb':15 'prerock':14 'radio':9C 'unsorted':16 'weekend':8B 'why':6A,13 'wonder':5A,12
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-4', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636300898.9419055  (2021-11-07 17:01:38)
                             'size'  14366891