======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '168'
                                          'artist'  'Walter Brennan'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1962'
                                           'title'  'Old Rivers'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', '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'  '81'
                                      'tracktotal'  ''
                                            'date'  '1962'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country;set-pl-billboard'
                                             'bpm'  '121.264'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1962'
'TBPM' (BPM (beats per minute))                     '121.264'
'TCON' (Content type, a.k.a. Genre)                 ['loc-namerica-country', 'set-pl-billboard']
'TDRC' (Recording time)                             '1962'
'TIT2' (Title/songname/content description)         'Old Rivers'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Walter Brennan'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '81'
'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'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.15 dB'
'TXXX:replaygain_track_peak'                        '0.719375'

========================== row from database ==========================
                                              'id'  1295285
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1962/081 - Walter Brennan - Old Rivers.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  168
                                           'genre'  loc-namerica-country;set-pl-billboard
                                        'filesize'  2698693
                                           'mtime'  1621630130
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 081 loc namerica country;set pl billboard
                                      'tag_artist'  Walter Brennan
                                     'tag_release'  Billboard Top Pop Singles of 1962
                                       'tag_title'  Old Rivers
                                             'bpm'  121.264
                                    'search_title'  'old':1 'rivers':2
                                   'search_artist'  'brennan':2 'walter':1
                                  'search_release'  '1962':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 'billboard':10 'country':5,7 'loc':3 'namerica':4 'pl':9 'set':6,8 'top100':2
                                    'search_combo'  '00poprockelectronic':11 '1962':10C 'billboard':5C,20 'brennan':4B 'country':15,17 'loc':13 'namerica':14 'of':9C 'old':1A 'pl':19 'pop':7C 'rivers':2A 'set':16,18 'singles':8C 'top':6C 'top100':12 'walter':3B
                                    'tag_tracknum'  81
                                      'num_images'  0
                                             'key'  7A
                                           '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-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['lynn', '1894 07 25', 'massachusetts', 'dead', '1974 09 21']
                                        'tag_date'  1962
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630129.9573011  (2021-05-21 22:48:49)
                             'size'  2698693