======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '190'
                                          'artist'  'Henry Burr'
                                     'text_people'  ''
                                         'release'  'Victor 17913'
                                           'title'  'Mother (M-O-T-H-E-R - A Word That Means The World To Me)'
                                           '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']")
                                      'lastfmtags'  "['1900s', 'all', 'pop', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1915'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '130.6'
                                             'key'  '3B'
                                        '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)                     'Victor 17913'
'TBPM' (BPM (beats per minute))                     '130.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1915-11-17'
'TIT2' (Title/songname/content description)         'Mother (M-O-T-H-E-R - A Word That Means The World To Me)'
'TKEY' (Initial key)                                '3B'
'TLEN' (Length)                                     '190000'
'TPE1' (Lead performer(s)/Soloist(s))               'Henry Burr'
'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:lastfmtags'                                   ['1900s', 'all', 'pop', 'oldies', 'swing']
'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'                        '+1.35 dB'
'TXXX:replaygain_track_peak'                        '0.686505'

========================== row from database ==========================
                                              'id'  1465445
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1915/Henry Burr - M-O-T-H-E-R (A Word That Means The World To Me) 17-11-1915.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  190
                                           'genre'  prerock-vocal
                                        'filesize'  3914922
                                           'mtime'  1620666231
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1915 (A 11 1915 prerock vocal
                                      'tag_artist'  Henry Burr
                                     'tag_release'  Victor 17913
                                       'tag_title'  Mother (M-O-T-H-E-R - A Word That Means The World To Me)
                                             'bpm'  130.6
                                    'search_title'  'a':8 'e':6 'h':5 'm':2 'me':15,16 'means':11 'mother':1 'o':3 'r':7 't':4 'that':10 'the':12 'to':14 'word':9 'world':13
                                   'search_artist'  'burr':2 'henry':1
                                  'search_release'  '17913':2 'victor':1
                                     'search_rest'  '00oldiepop':5 '1915':6 'a':7,8 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'vocal':10
                                    'search_combo'  '00oldiepop':25 '17913':20C '1915':26 'a':8A,27,28 'burr':18B 'country':24 'e':6A 'exotica':22 'h':5A 'henry':17B 'jazz':21 'm':2A 'me':15A,16A 'means':11A 'mother':1A 'o':3A 'oldies':23 'prerock':29 'r':7A 't':4A 'that':10A 'the':12A 'to':14A 'victor':19C 'vocal':30 'word':9A 'world':13A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  3B
                                           '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'  ['1900s', 'all', 'pop', 'oldies', 'swing']
                                        'tag_date'  1915
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666230.5295267  (2021-05-10 19:03:50)
                             'size'  3914922