======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '171'
                                          'artist'  'Van & Schenck'
                                     'text_people'  ''
                                         'release'  'Columbia  2521 (77708)'
                                           'title'  "My Mind's Made Up To Marry Carolina"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['vaudeville', 'all', '20s', 'ragtime', 'usa']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1918'
                                        'comments'  ''
                                           'genre'  'prerock-ragtime'
                                             'bpm'  '84.2'
                                             'key'  '6A'
                                        '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)                     'Columbia  2521 (77708)'
'TBPM' (BPM (beats per minute))                     '84.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-ragtime'
'TDRC' (Recording time)                             '1918'
'TIT2' (Title/songname/content description)         "My Mind's Made Up To Marry Carolina"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '171000'
'TPE1' (Lead performer(s)/Soloist(s))               'Van & Schenck'
'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'                                   ['vaudeville', 'all', '20s', 'ragtime', 'usa']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+1.53 dB'
'TXXX:replaygain_track_peak'                        '0.785764'

========================== row from database ==========================
                                              'id'  1501353
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1918/Van & Schenck - My Mind_s Made Up to Marry Carolina 1918.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  171
                                           'genre'  prerock-ragtime
                                        'filesize'  3508517
                                           'mtime'  1620526853
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1918 Mind_s to 1918 prerock ragtime
                                      'tag_artist'  Van & Schenck
                                     'tag_release'  Columbia  2521 (77708)
                                       'tag_title'  My Mind's Made Up To Marry Carolina
                                             'bpm'  84.2
                                    'search_title'  'carolina':9 'made':5 'marry':8 'mind':2 'minds':4 'my':1 's':3 'to':7 'up':6
                                   'search_artist'  'schenck':2 'van':1
                                  'search_release'  '2521':2 '77708':3,4 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1918':6 'country':4 'exotica':2 'jazz':1 'mind':7 'oldies':3 'prerock':10 'ragtime':11 's':8 'to':9
                                    'search_combo'  '00oldiepop':20 '1918':21 '2521':13C '77708':14C,15C 'carolina':9A 'columbia':12C 'country':19 'exotica':17 'jazz':16 'made':5A 'marry':8A 'mind':2A,22 'minds':4A 'my':1A 'oldies':18 'prerock':25 'ragtime':26 's':3A,23 'schenck':11B 'to':7A,24 'up':6A 'van':10B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['vaudeville', 'all', '20s', 'ragtime', 'usa']
                                        'tag_date'  1918
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526852.8304996  (2021-05-09 04:20:52)
                             'size'  3508517