======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '161'
                                          'artist'  'The Playmates'
                                     'text_people'  ''
                                         'release'  'Dr. Demento: 20th Anniversary'
                                           'title'  'Beep Beep'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['comedy', 'lovely', 'power pop', 'oldies', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'entertaining-unsorted'
                                             'bpm'  '138.040'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dr. Demento: 20th Anniversary'
'TBPM' (BPM (beats per minute))                     '138.040'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-unsorted'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Beep Beep'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Playmates'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['comedy', 'lovely', 'power pop', 'oldies', '60s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.51 dB'
'TXXX:replaygain_track_peak'                        '0.698695'

========================== row from database ==========================
                                              'id'  1348826
                                            'path'  /data/Music/Bulk/00spent/Unsorted/Playmates, The__Dr. Demento_ 20th Anniversary Collection (disc 1)__13 - Beep Beep.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  161
                                           'genre'  entertaining-unsorted
                                        'filesize'  2580352
                                           'mtime'  1620647377
                                   'redo_metaread'  0
                                        'rest_str'   00spent Unsorted Playmates, The__Dr. Demento_ Collection (disc 1)__13 entertaining unsorted
                                      'tag_artist'  The Playmates
                                     'tag_release'  Dr. Demento: 20th Anniversary
                                       'tag_title'  Beep Beep
                                             'bpm'  138.04
                                    'search_title'  'beep':1
                                   'search_artist'  'playmates':2 'the':1
                                  'search_release'  '20th':5 'anniversary':6 'demento':3,4 'dr':1,2
                                     'search_rest'  '00spent':1 '1':13,15 '13':14,16 'collection':10 'demento':9 'disc':11,12 'dr':6,8 'entertaining':17 'playmates':3,4 'the':5,7 'unsorted':2
                                    'search_combo'  '00spent':10 '1':22,24 '13':23,25 '20th':8C 'anniversary':9C 'beep':1A 'collection':19 'demento':6C,7C,18 'disc':20,21 'dr':4C,5C,15,17 'entertaining':26 'playmates':3B,12,13 'the':2B,14,16 'unsorted':11
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['comedy', 'lovely', 'power pop', 'oldies', '60s']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620647377.2835329  (2021-05-10 13:49:37)
                             'size'  2580352