======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '234'
                                          'artist'  "Harry Raderman's Jazz Orchestra"
                                     'text_people'  ''
                                         'release'  'Edison Blue Amberol  4182'
                                           'title'  'Avalon'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-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-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'twenties', 'all', 'jazz', '1920s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1920'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '84.7'
                                             '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'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TALB' (Album/Movie/Show title)                     'Edison Blue Amberol  4182'
'TBPM' (BPM (beats per minute))                     '84.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1920-09-17'
'TIT2' (Title/songname/content description)         'Avalon'
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '234000'
'TPE1' (Lead performer(s)/Soloist(s))               "Harry Raderman's Jazz Orchestra"
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'twenties', 'all', 'jazz', '1920s']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.30 dB'
'TXXX:replaygain_track_peak'                        '0.550177'

========================== row from database ==========================
                                              'id'  1506552
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920/Harry Raderman_s Jazz Orchestra - Avalon 17-9-1920 Edison.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  234
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  4752719
                                           'mtime'  1620524141
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920 Raderman_s 17 9 1920 prerock jb jazz unsorted
                                      'tag_artist'  Harry Raderman's Jazz Orchestra
                                     'tag_release'  Edison Blue Amberol  4182
                                       'tag_title'  Avalon
                                             'bpm'  84.7
                                    'search_title'  'avalon':1
                                   'search_artist'  'harry':1 'jazz':5 'orchestra':6 'raderman':2 'radermans':4 's':3
                                  'search_release'  '4182':4 'amberol':3 'blue':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '1920':6 '9':9 'country':4 'exotica':2 'jazz':1 'jb':11 'oldies':3 'prerock':10 'raderman':7 's':8 'unsorted':12
                                    'search_combo'  '00oldiepop':16 '1920':17 '4182':11C '9':20 'amberol':10C 'avalon':1A 'blue':9C 'country':15 'edison':8C 'exotica':13 'harry':2B 'jazz':6B,12 'jb':22 'oldies':14 'orchestra':7B 'prerock':21 'raderman':3B,18 'radermans':5B 's':4B,19 'unsorted':23
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'twenties', 'all', 'jazz', '1920s']
                                        'tag_date'  1920
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524141.1472561  (2021-05-09 03:35:41)
                             'size'  4752719