======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '173'
                                          'artist'  'Frank Crumit'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I Can't Stand Sittin' In A Cell"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'need to rate', 'comedy', 'folk', 'comedy song']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1938'
                                        'comments'  ''
                                           'genre'  'prerock-folk'
                                             'bpm'  '106.8'
                                             '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'
'TBPM' (BPM (beats per minute))                     '106.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-folk'
'TDRC' (Recording time)                             '1938-02-17'
'TIT2' (Title/songname/content description)         "I Can't Stand Sittin' In A Cell"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '173000'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Crumit'
'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'                                   ['all', 'need to rate', 'comedy', 'folk', 'comedy song']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.77 dB'
'TXXX:replaygain_track_peak'                        '0.536869'

========================== row from database ==========================
                                              'id'  1501477
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1938/Frank Crumit - I Can_t Stand Sittin_ In A Cell 17-2-1938.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  173
                                           'genre'  prerock-folk
                                        'filesize'  3519469
                                           'mtime'  1621705411
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1938 Can_t Sittin_ 17 2 1938 prerock folk
                                      'tag_artist'  Frank Crumit
                                     'tag_release'  None
                                       'tag_title'  I Can't Stand Sittin' In A Cell
                                             'bpm'  106.8
                                    'search_title'  'a':9 'can':2 'cant':4 'cell':10 'i':1 'in':8 'sittin':6,7 'stand':5 't':3
                                   'search_artist'  'crumit':2 'frank':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1938':6 '2':10 'can':7 'country':4 'exotica':2 'folk':12 'jazz':1 'oldies':3 'prerock':11 'sittin':9 't':8
                                    'search_combo'  '00oldiepop':17 '1938':18 '2':22 'a':9A 'can':2A,19 'cant':4A 'cell':10A 'country':16 'crumit':12B 'exotica':14 'folk':24 'frank':11B 'i':1A 'in':8A 'jazz':13 'oldies':15 'prerock':23 'sittin':6A,7A,21 'stand':5A 't':3A,20
                                    '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-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['all', 'need to rate', 'comedy', 'folk', 'comedy song']
                                        'tag_date'  1938
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705410.8960855  (2021-05-22 19:43:30)
                             'size'  3519469