======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '196'
                                          'artist'  'Freddy Martin Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Doin' What Comes Naturally (vocal - Glenn Hughes)"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', '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'  "['jazz', 'big band', '50s', '40s', 'all']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1946'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '84.0'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'GEOB:SfMarkers'                                    GEOB(encoding=<Encoding.LATIN1: 0>, mime='', filename='', desc='SfMarkers', data=b'\x0c\x00\x00\x00d\x00\x00\x00\x00\x00\x00\x00\x00')
'TBPM' (BPM (beats per minute))                     '84.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1946-06-22'
'TIT2' (Title/songname/content description)         "Doin' What Comes Naturally (vocal - Glenn Hughes)"
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '196000'
'TPE1' (Lead performer(s)/Soloist(s))               'Freddy Martin Orchestra'
'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'                                   ['jazz', 'big band', '50s', '40s', 'all']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'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'                        '+1.12 dB'
'TXXX:replaygain_track_peak'                        '0.401776'

========================== row from database ==========================
                                              'id'  1502857
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1946/Freddy Martin Orchestra - Doin_ What Comes Naturally (v - Glenn Hughes) 22-6-1946.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  196
                                           'genre'  prerock-swing
                                        'filesize'  3994958
                                           'mtime'  1620562052
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1946 Doin_ 22 6 1946 prerock swing
                                      'tag_artist'  Freddy Martin Orchestra
                                     'tag_release'  None
                                       'tag_title'  Doin' What Comes Naturally (vocal - Glenn Hughes)
                                             'bpm'  84.0
                                    'search_title'  'comes':4 'doin':1,2 'glenn':8 'hughes':9,10 'naturally':5 'vocal':6,7 'what':3
                                   'search_artist'  'freddy':1 'martin':2 'orchestra':3
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1946':6 '22':8 '6':9 'country':4 'doin':7 'exotica':2 'jazz':1 'oldies':3 'prerock':10 'swing':11
                                    'search_combo'  '00oldiepop':18 '1946':19 '22':21 '6':22 'comes':4A 'country':17 'doin':1A,2A,20 'exotica':15 'freddy':11B 'glenn':8A 'hughes':9A,10A 'jazz':14 'martin':12B 'naturally':5A 'oldies':16 'orchestra':13B 'prerock':23 'swing':24 'vocal':6A,7A 'what':3A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           '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-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'big band', '50s', '40s', 'all']
                                        'tag_date'  1946
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562051.54635  (2021-05-09 14:07:31)
                             'size'  3994958