======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '141'
                                          'artist'  'Tony Bennett'
                                     'text_people'  ''
                                         'release'  'sweets'
                                           'title'  'From The Candy Store On The Corner To The Chapel On The Hill'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['male vocalists', 'jazz', 'easy listening', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '128.495'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'sweets'
'TBPM' (BPM (beats per minute))                     '128.495'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TIT2' (Title/songname/content description)         'From The Candy Store On The Corner To The Chapel On The Hill'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tony Bennett'
'TXXX:Mp3gain_minmax'                               '122,183'
'TXXX:Mp3gain_undo'                                 '+005,+005,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['male vocalists', 'jazz', 'easy listening', 'oldies', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                        '+0.65 dB'
'TXXX:replaygain_track_peak'                        '0.396354'

========================== row from database ==========================
                                              'id'  735822
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Tony Bennett - From The Candy Store On The Corner To The Chapel On The Hill.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  141
                                           'genre'  set-th-candy
                                        'filesize'  4529046
                                           'mtime'  1620343134
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country set th candy
                                      'tag_artist'  Tony Bennett
                                     'tag_release'  sweets
                                       'tag_title'  From The Candy Store On The Corner To The Chapel On The Hill
                                             'bpm'  128.495
                                    'search_title'  'candy':3 'chapel':8 'corner':6 'from':1 'hill':9 'on':5 'store':4 'the':2 'to':7
                                   'search_artist'  'bennett':2 'tony':1
                                  'search_release'  'sweets':1
                                     'search_rest'  'candy':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':5 'th':6
                                    'search_combo'  'bennett':11B 'candy':3A,19 'chapel':8A 'corner':6A 'country':16 'exotica':14 'from':1A 'hill':9A 'jazz':13 'oldies':15 'on':5A 'set':17 'store':4A 'sweets':12C 'th':18 'the':2A 'to':7A 'tony':10B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['male vocalists', 'jazz', 'easy listening', 'oldies', 'swing']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343133.7861173  (2021-05-07 01:18:53)
                             'size'  4529046