======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '425'
                                          'artist'  'Blue Mitchell'
                                     'text_people'  'Jimmy Heath'
                                         'release'  'radio jazz 13'
                                           'title'  'The Thing to Do'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
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                                      'lastfmtags'  "['jazz', 'trumpet', 'hard bop', 'bebop', 'funk']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '5'
                                            'date'  '1964'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '92.1'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ['0',
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'COMM:iTunes_CDDB_IDs:eng'                          '5+036C0E7CAB1DEDC7CAF4104500D4446A+7048171'
'TALB' (Album/Movie/Show title)                     ['radio jazz 13', 'The Thing to Do']
'TBPM' (BPM (beats per minute))                     '92.1'
'TCOM' (Composer)                                   'Jimmy Heath'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1964'
'TENC' (Encoded by)                                 'iTunes 9.0.1.8'
'TIT2' (Title/songname/content description)         'The Thing to Do'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Blue Mitchell'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/5'
'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:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazz', 'trumpet', 'hard bop', 'bebop', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.77 dB'
'TXXX:replaygain_track_peak'                        '0.987056'
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========================== row from database ==========================
                                              'id'  1482351
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Blue Mitchell - the thing to do.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  425
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  17035115
                                           'mtime'  1620541334
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic the thing do prerock jb unsorted
                                      'tag_artist'  Blue Mitchell
                                     'tag_release'  radio jazz 13
                                       'tag_title'  The Thing to Do
                                             'bpm'  92.1
                                    'search_title'  'do':4 'the':1 'thing':2 'to':3
                                   'search_artist'  'blue':1 'mitchell':2
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'do':4 'jb':6 'prerock':5 'the':2 'thing':3 'unsorted':7
                                    'search_combo'  '00poprockelectronic':9 'blue':5B 'do':4A,12 'jazz':8C 'jb':14 'mitchell':6B 'prerock':13 'radio':7C 'the':1A,10 'thing':2A,11 'to':3A 'unsorted':15
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-3', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['jazz', 'trumpet', 'hard bop', 'bebop', 'funk']
                                        'tag_date'  1964
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620541334.108377  (2021-05-09 08:22:14)
                             'size'  17035115