======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '169'
                                          'artist'  "Charles Prince's Band"
                                     'text_people'  ''
                                         'release'  'Columbia  3290 (64)'
                                           'title'  'Whistler And His Dog'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', '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-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1905'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '103.6'
                                             'key'  '6B'
                                        '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  3290 (64)'
'TBPM' (BPM (beats per minute))                     '103.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1905-10'
'TIT2' (Title/songname/content description)         'Whistler And His Dog'
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '169000'
'TPE1' (Lead performer(s)/Soloist(s))               "Charles Prince's Band"
'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: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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.16 dB'
'TXXX:replaygain_track_peak'                        '0.522046'

========================== row from database ==========================
                                              'id'  1508398
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1905/Charles Prince_s Band - Whistler And His Dog -10-1905.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  169
                                           'genre'  prerock-band
                                        'filesize'  3496317
                                           'mtime'  1620558529
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1905 Prince_s 10 1905 prerock band
                                      'tag_artist'  Charles Prince's Band
                                     'tag_release'  Columbia  3290 (64)
                                       'tag_title'  Whistler And His Dog
                                             'bpm'  103.6
                                    'search_title'  'and':2 'dog':4 'his':3 'whistler':1
                                   'search_artist'  'band':5 'charles':1 'prince':2 'princes':4 's':3
                                  'search_release'  '3290':2 '64':3,4 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1905':6 'band':10 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'prince':7 's':8
                                    'search_combo'  '00oldiepop':18 '1905':19 '3290':11C '64':12C,13C 'and':2A 'band':9B,23 'charles':5B 'columbia':10C 'country':17 'dog':4A 'exotica':15 'his':3A 'jazz':14 'oldies':16 'prerock':22 'prince':6B,20 'princes':8B 's':7B,21 'whistler':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1905
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620558529.3088565  (2021-05-09 13:08:49)
                             'size'  3496317