======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '172'
                                          'artist'  "Arthur Pryor's Band"
                                     'text_people'  ''
                                         'release'  'Victor 16974'
                                           'title'  'Nut Cracker Ballet'
                                           '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-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'jazz', 'ragtime']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1911'
                                        'comments'  ''
                                           'genre'  'prerock-instrumental'
                                             'bpm'  '125.2'
                                             'key'  '11A'
                                        '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)                     'Victor 16974'
'TBPM' (BPM (beats per minute))                     '125.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-instrumental'
'TDRC' (Recording time)                             '1911-11-05'
'TIT2' (Title/songname/content description)         'Nut Cracker Ballet'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '172000'
'TPE1' (Lead performer(s)/Soloist(s))               "Arthur Pryor'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:lastfmtags'                                   ['all', 'jazz', 'ragtime']
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.86 dB'
'TXXX:replaygain_track_peak'                        '0.573425'

========================== row from database ==========================
                                              'id'  1503042
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1911/Arthur Pryor_s Band - Nut Cracker Ballet 5-11-1911.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  172
                                           'genre'  prerock-instrumental
                                        'filesize'  3601201
                                           'mtime'  1642082552
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1911 Pryor_s 5 11 1911 prerock instrumental
                                      'tag_artist'  Arthur Pryor's Band
                                     'tag_release'  Victor 16974
                                       'tag_title'  Nut Cracker Ballet
                                             'bpm'  125.2
                                    'search_title'  'ballet':3 'cracker':2 'nut':1
                                   'search_artist'  'arthur':1 'band':5 'pryor':2 'pryors':4 's':3
                                  'search_release'  '16974':2 'victor':1
                                     'search_rest'  '00oldiepop':5 '1911':6 '5':9 'country':4 'exotica':2 'instrumental':11 'jazz':1 'oldies':3 'prerock':10 'pryor':7 's':8
                                    'search_combo'  '00oldiepop':15 '16974':10C '1911':16 '5':19 'arthur':4B 'ballet':3A 'band':8B 'country':14 'cracker':2A 'exotica':12 'instrumental':21 'jazz':11 'nut':1A 'oldies':13 'prerock':20 'pryor':5B,17 'pryors':7B 's':6B,18 'victor':9C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11A
                                           '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-1', 'q-play-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']
                                      'lastfmtags'  ['all', 'jazz', 'ragtime']
                                        'tag_date'  1911
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642082551.5367439  (2022-01-13 15:02:31)
                             'size'  3601201