======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '168'
                                          'artist'  'Billy Murray & Ada Jones'
                                     'text_people'  ''
                                         'release'  'Victor 16496'
                                           'title'  "Cupid's I O U"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1910'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '105.4'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Victor 16496'
'TBPM' (BPM (beats per minute))                     '105.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1910-03'
'TIT2' (Title/songname/content description)         "Cupid's I O U"
'TKEY' (Initial key)                                '5A'
'TLEN' (Length)                                     '168000'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Murray & Ada Jones'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+1.97 dB'
'TXXX:replaygain_track_peak'                        '0.532694'

========================== row from database ==========================
                                              'id'  1518162
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1910/Billy Murray & Ada Jones - Cupid_s I O U -3-1910.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  168
                                           'genre'  prerock-vocal
                                        'filesize'  3411007
                                           'mtime'  1620666032
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1910 Cupid_s 3 1910 prerock vocal
                                      'tag_artist'  Billy Murray & Ada Jones
                                     'tag_release'  Victor 16496
                                       'tag_title'  Cupid's I O U
                                             'bpm'  105.4
                                    'search_title'  'cupid':1 'cupids':3 'i':4 'o':5 's':2 'u':6
                                   'search_artist'  'ada':3 'billy':1 'jones':4 'murray':2
                                  'search_release'  '16496':2 'victor':1
                                     'search_rest'  '00oldiepop':5 '1910':6 '3':9 'country':4 'cupid':7 'exotica':2 'jazz':1 'oldies':3 'prerock':10 's':8 'vocal':11
                                    'search_combo'  '00oldiepop':17 '16496':12C '1910':18 '3':21 'ada':9B 'billy':7B 'country':16 'cupid':1A,19 'cupids':3A 'exotica':14 'i':4A 'jazz':13 'jones':10B 'murray':8B 'o':5A 'oldies':15 'prerock':22 's':2A,20 'u':6A 'victor':11C 'vocal':23
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5A
                                           '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-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1910
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666032.4871857  (2021-05-10 19:00:32)
                             'size'  3411007