======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '150'
                                          'artist'  'Ethel Merman'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'You Say The Nicest Things (+ Jimmy Durante)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['female vocalists', 'showtunes', 'musical theater', 'female', 'broadway', "
 "'title is a full sentence']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1951'
                                        'comments'  ''
                                           'genre'  'prerock-showtunes'
                                             'bpm'  '100.906'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '100.906'
'TCON' (Content type, a.k.a. Genre)                 'prerock-showtunes'
'TDRC' (Recording time)                             '1951'
'TIT2' (Title/songname/content description)         'You Say The Nicest Things (+ Jimmy Durante)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ethel Merman'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['female vocalists',
 'showtunes',
 'musical theater',
 'female',
 'broadway',
 'title is a full sentence']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+3.54 dB'
'TXXX:replaygain_track_peak'                        '0.471126'

========================== row from database ==========================
                                              'id'  1445225
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1951/Ethel Merman - You Say The Nicest Things (+ Jimmy Durante) 26-11-1951.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  150
                                           'genre'  prerock-showtunes
                                        'filesize'  3010226
                                           'mtime'  1636135292
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1951 26 11 1951 prerock showtunes
                                      'tag_artist'  Ethel Merman
                                     'tag_release'  None
                                       'tag_title'  You Say The Nicest Things (+ Jimmy Durante)
                                             'bpm'  100.906
                                    'search_title'  'durante':7,8 'jimmy':6 'nicest':4 'say':2 'the':3 'things':5 'you':1
                                   'search_artist'  'ethel':1 'merman':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1951':6 '26':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'showtunes':9
                                    'search_combo'  '00oldiepop':15 '1951':16 '26':17 'country':14 'durante':7A,8A 'ethel':9B 'exotica':12 'jazz':11 'jimmy':6A 'merman':10B 'nicest':4A 'oldies':13 'prerock':18 'say':2A 'showtunes':19 'the':3A 'things':5A 'you':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['female vocalists', 'showtunes', 'musical theater', 'female', 'broadway', 'title is a full sentence']
                                        'tag_date'  1951
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636135292.0877492  (2021-11-05 19:01:32)
                             'size'  3010226