======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '132'
                                          'artist'  'United States Marine Band'
                                     'text_people'  ''
                                         'release'  'Edison 10410'
                                           'title'  "Emperor's Manoeuvre"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'q-play-2', 'Q-JZFKS-2', 'Q-OLDST-1', 'q-chart-1', 'q-drums-1', 'q-other-4', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['military band', 'american', 'military', 'classical', 'marschmusik']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1910'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '130.7'
                                             'key'  '4A'
                                        '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)                     'Edison 10410'
'TBPM' (BPM (beats per minute))                     '130.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1910'
'TIT2' (Title/songname/content description)         "Emperor's Manoeuvre"
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '132000'
'TPE1' (Lead performer(s)/Soloist(s))               'United States Marine 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:lastfmtags'                                   ['military band', 'american', 'military', 'classical', 'marschmusik']
'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'                        '+0.53 dB'
'TXXX:replaygain_track_peak'                        '0.539924'

========================== row from database ==========================
                                              'id'  1505698
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1910/United States Marine Band - Emperor_s Manoeuvre 1910.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  132
                                           'genre'  prerock-band
                                        'filesize'  2727722
                                           'mtime'  1630254816
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1910 Emperor_s 1910 prerock band
                                      'tag_artist'  United States Marine Band
                                     'tag_release'  Edison 10410
                                       'tag_title'  Emperor's Manoeuvre
                                             'bpm'  130.7
                                    'search_title'  'emperor':1 'emperors':3 'manoeuvre':4 's':2
                                   'search_artist'  'band':4 'marine':3 'states':2 'united':1
                                  'search_release'  '10410':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '1910':6 'band':10 'country':4 'emperor':7 'exotica':2 'jazz':1 'oldies':3 'prerock':9 's':8
                                    'search_combo'  '00oldiepop':15 '10410':10C '1910':16 'band':8B,20 'country':14 'edison':9C 'emperor':1A,17 'emperors':3A 'exotica':12 'jazz':11 'manoeuvre':4A 'marine':7B 'oldies':13 'prerock':19 's':2A,18 'states':6B 'united':5B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4A
                                           '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'  ['military band', 'american', 'military', 'classical', 'marschmusik']
                                        'tag_date'  1910
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1630254816.1277406  (2021-08-29 18:33:36)
                             'size'  2727722