======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '206'
                                          'artist'  'Walter Brennan'
                                     'text_people'  ''
                                         'release'  '1962 Verzamel Album'
                                           'title'  'It Takes a Heap af Living'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lynn', '1894 07 25', 'massachusetts', 'dead', '1974 09 21']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '1962'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '84.140'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '1962 Verzamel Album'
'TBPM' (BPM (beats per minute))                     '84.140'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1962'
'TIT2' (Title/songname/content description)         'It Takes a Heap af Living'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Walter Brennan'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['lynn', '1894 07 25', 'massachusetts', 'dead', '1974 09 21']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.82 dB'
'TXXX:replaygain_track_peak'                        '0.503274'

========================== row from database ==========================
                                              'id'  1346181
                                            'path'  /data/Music/Bulk/00poprockelectronic/1962 - Verzamel Album/Walter Brennan - It Takes A Heap Of Living.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  206
                                           'genre'  loc-namerica-country
                                        'filesize'  2894488
                                           'mtime'  1621630081
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Of loc namerica country
                                      'tag_artist'  Walter Brennan
                                     'tag_release'  1962 Verzamel Album
                                       'tag_title'  It Takes a Heap af Living
                                             'bpm'  84.14
                                    'search_title'  'a':3 'af':5 'heap':4 'it':1 'living':6 'takes':2
                                   'search_artist'  'brennan':2 'walter':1
                                  'search_release'  '1962':1 'album':3 'verzamel':2
                                     'search_rest'  '00poprockelectronic':1 'country':5 'loc':3 'namerica':4 'of':2
                                    'search_combo'  '00poprockelectronic':12 '1962':9C 'a':3A 'af':5A 'album':11C 'brennan':8B 'country':16 'heap':4A 'it':1A 'living':6A 'loc':14 'namerica':15 'of':13 'takes':2A 'verzamel':10C 'walter':7B
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['lynn', '1894 07 25', 'massachusetts', 'dead', '1974 09 21']
                                        'tag_date'  1962
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630081.4007442  (2021-05-21 22:48:01)
                             'size'  2894488