======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '50'
                                          'artist'  'Edward M. Favor'
                                     'text_people'  ''
                                         'release'  'Columbia  6544'
                                           'title'  "King's Song"
                                           '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-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1893'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '145.3'
                                             'key'  '10A'
                                        '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  6544'
'TBPM' (BPM (beats per minute))                     '145.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1893'
'TIT2' (Title/songname/content description)         "King's Song"
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '50000'
'TPE1' (Lead performer(s)/Soloist(s))               'Edward M. Favor'
'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:discogstags'                                  'pop'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.76 dB'
'TXXX:replaygain_track_peak'                        '0.586704'

========================== row from database ==========================
                                              'id'  1521462
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1800/Edward M Favor - King_s Song 1893.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  50
                                           'genre'  prerock-vocal
                                        'filesize'  1049581
                                           'mtime'  1620665799
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1800 King_s 1893 prerock vocal
                                      'tag_artist'  Edward M. Favor
                                     'tag_release'  Columbia  6544
                                       'tag_title'  King's Song
                                             'bpm'  145.3
                                    'search_title'  'king':1 'kings':3 's':2 'song':4
                                   'search_artist'  'edward':1 'favor':4 'm':2,3
                                  'search_release'  '6544':2 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1800':6 '1893':9 'country':4 'exotica':2 'jazz':1 'king':7 'oldies':3 'prerock':10 's':8 'vocal':11
                                    'search_combo'  '00oldiepop':15 '1800':16 '1893':19 '6544':10C 'columbia':9C 'country':14 'edward':5B 'exotica':12 'favor':8B 'jazz':11 'king':1A,17 'kings':3A 'm':6B,7B 'oldies':13 'prerock':20 's':2A,18 'song':4A 'vocal':21
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           '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-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1893
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1620665799.131877  (2021-05-10 18:56:39)
                             'size'  1049581