======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '198'
                                          'artist'  'Ink Spots'
                                     'text_people'  ''
                                         'release'  'The Ink Spots'
                                           'title'  '211 A lovely way to spend an evening - Ink Spots (11-03-1944)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'swing', '40s', 'vocal jazz', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '211'
                                      'tracktotal'  ''
                                            'date'  '1944'
                                        'comments'  ''
                                           'genre'  'prerock-jb-unsorted'
                                             'bpm'  '88.092'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Ink Spots'
'TBPM' (BPM (beats per minute))                     '88.092'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-unsorted'
'TDRC' (Recording time)                             '1944'
'TIT2' (Title/songname/content description)         '211 A lovely way to spend an evening - Ink Spots (11-03-1944)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ink Spots'
'TRCK' (Track number/Position in set)               '211'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'swing', '40s', 'vocal jazz', 'oldies']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.41 dB'
'TXXX:replaygain_track_peak'                        '0.814164'

========================== row from database ==========================
                                              'id'  1455045
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/211 A lovely way to spend an evening - Ink Spots (11-03-1944).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  198
                                           'genre'  prerock-jb-unsorted
                                        'filesize'  3175194
                                           'mtime'  1620527441
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 prerock jb unsorted
                                      'tag_artist'  Ink Spots
                                     'tag_release'  The Ink Spots
                                       'tag_title'  211 A lovely way to spend an evening - Ink Spots (11-03-1944)
                                             'bpm'  88.092
                                    'search_title'  '03':12 '11':11 '11031944':14 '1944':13 '211':1 'a':2 'an':7 'evening':8 'ink':9 'lovely':3 'spend':6 'spots':10 'to':5 'way':4
                                   'search_artist'  'ink':1 'spots':2
                                  'search_release'  'ink':2 'spots':3 'the':1
                                     'search_rest'  '00oldiepop':5 '1943':6 'country':4 'exotica':2 'jazz':1 'jb':8 'oldies':3 'prerock':7 'unsorted':9
                                    'search_combo'  '00oldiepop':24 '03':12A '11':11A '11031944':14A '1943':25 '1944':13A '211':1A 'a':2A 'an':7A 'country':23 'evening':8A 'exotica':21 'ink':9A,15B,18C 'jazz':20 'jb':27 'lovely':3A 'oldies':22 'prerock':26 'spend':6A 'spots':10A,16B,19C 'the':17C 'to':5A 'unsorted':28 'way':4A
                                    'tag_tracknum'  211
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'swing', '40s', 'vocal jazz', 'oldies']
                                        'tag_date'  1944
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527440.5567918  (2021-05-09 04:30:40)
                             'size'  3175194