======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '140'
                                          'artist'  'Ken Nordine'
                                     'text_people'  ''
                                         'release'  'Love Words'
                                           'title'  'Kim'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['cool', 'jazz', 'spoken word', 'word jazz', 'poetry']"
                                     'discogstags'  "['space-age', 'spoken word', 'cool jazz', 'jazz', 'non-music']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-word'
                                             'bpm'  '87.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Love Words'
'TBPM' (BPM (beats per minute))                     '87.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-word'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Kim'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ken Nordine'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['space-age', 'spoken word', 'cool jazz', 'jazz', 'non-music']
'TXXX:lastfmtags'                                   ['cool', 'jazz', 'spoken word', 'word jazz', 'poetry']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.76 dB'
'TXXX:replaygain_track_peak'                        '0.729700'

========================== row from database ==========================
                                              'id'  466707
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Ken Nordine  (usa)/Ken Nordine - 1958 - Love Words (Dot) [128k]/Ken Nordine - LOVE WORDS - 14 - Kim.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  140
                                           'genre'  prerock-jb-jazz-soft-word
                                        'filesize'  2245200
                                           'mtime'  1620538450
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm (usa) 1958 (Dot) [128k] LOVE WORDS 14 prerock jb jazz soft word
                                      'tag_artist'  Ken Nordine
                                     'tag_release'  Love Words
                                       'tag_title'  Kim
                                             'bpm'  87.0
                                    'search_title'  'kim':1
                                   'search_artist'  'ken':1 'nordine':2
                                  'search_release'  'love':1 'words':2
                                     'search_rest'  '128k':6,7 '1958':3 'dot':4,5 'jazz':12 'jb':11 'love':8 'prerock':10 'soft':13 'usa':1,2 'word':14 'words':9
                                    'search_combo'  '128k':11,12 '1958':8 'dot':9,10 'jazz':17 'jb':16 'ken':2B 'kim':1A 'love':4C,13 'nordine':3B 'prerock':15 'soft':18 'usa':6,7 'word':19 'words':5C,14
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['cool', 'jazz', 'spoken word', 'word jazz', 'poetry']
                                        'tag_date'  1958
                                     'discogstags'  ['space-age', 'spoken word', 'cool jazz', 'jazz', 'non-music']

============================== file details ==============================
                                           'mtime'  1620538449.5560737  (2021-05-09 07:34:09)
                             'size'  2245200