======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '208'
                                          'artist'  'Henry Burr & Helen Clark'
                                     'text_people'  ''
                                         'release'  'Columbia  1800 (45967)'
                                           'title'  "When You're In Love With Someone Who Is Not In Love With You"
                                           '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1916'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '143.5'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TALB' (Album/Movie/Show title)                     'Columbia  1800 (45967)'
'TBPM' (BPM (beats per minute))                     '143.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1916-01-08'
'TIT2' (Title/songname/content description)         "When You're In Love With Someone Who Is Not In Love With You"
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '208000'
'TPE1' (Lead performer(s)/Soloist(s))               'Henry Burr & Helen Clark'
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.41 dB'
'TXXX:replaygain_track_peak'                        '0.643142'

========================== row from database ==========================
                                              'id'  1510347
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1916/Henry Burr & Helen Clark - When You_re In Love With Someone 8-1-1916.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  208
                                           'genre'  prerock-vocal
                                        'filesize'  4271784
                                           'mtime'  1620666252
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1916 You_re 1916 prerock vocal
                                      'tag_artist'  Henry Burr & Helen Clark
                                     'tag_release'  Columbia  1800 (45967)
                                       'tag_title'  When You're In Love With Someone Who Is Not In Love With You
                                             'bpm'  143.5
                                    'search_title'  'in':5 'is':10 'love':6 'not':11 're':3 'someone':8 'when':1 'who':9 'with':7 'you':2,12 'youre':4
                                   'search_artist'  'burr':2 'clark':4 'helen':3 'henry':1
                                  'search_release'  '1800':2 '45967':3,4 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1916':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 're':8 'vocal':10 'you':7
                                    'search_combo'  '00oldiepop':25 '1800':18C '1916':26 '45967':19C,20C 'burr':14B 'clark':16B 'columbia':17C 'country':24 'exotica':22 'helen':15B 'henry':13B 'in':5A 'is':10A 'jazz':21 'love':6A 'not':11A 'oldies':23 'prerock':29 're':3A,28 'someone':8A 'vocal':30 'when':1A 'who':9A 'with':7A 'you':2A,12A,27 'youre':4A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           '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-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1916
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666251.9677725  (2021-05-10 19:04:11)
                             'size'  4271784