======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '209'
                                          'artist'  "Sodero's Band"
                                     'text_people'  ''
                                         'release'  'Edison Blue Amberol  2790'
                                           'title'  'Amina (Egyptian Serenade)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-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-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['instrumental', 'cylinder recordings', 'instrumentals', '1910s', 'the "
 "vitamin b12']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1915'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-opera'
                                             'bpm'  '123.3'
                                             'key'  '5B'
                                        '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 Blue Amberol  2790'
'TBPM' (BPM (beats per minute))                     '123.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-opera'
'TDRC' (Recording time)                             '1915-10'
'TIT2' (Title/songname/content description)         'Amina (Egyptian Serenade)'
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '209000'
'TPE1' (Lead performer(s)/Soloist(s))               "Sodero's Band"
'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:lastfmtags'                                   ['instrumental',
 'cylinder recordings',
 'instrumentals',
 '1910s',
 'the vitamin b12']
'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'                        '+1.74 dB'
'TXXX:replaygain_track_peak'                        '0.616407'

========================== row from database ==========================
                                              'id'  1515461
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1915/Sodero_s Band - Amina (Egyptian Serenade) -10-1915.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  209
                                           'genre'  prerock-vocal-opera
                                        'filesize'  4247072
                                           'mtime'  1621625663
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1915 Sodero_s 10 1915 prerock vocal opera
                                      'tag_artist'  Sodero's Band
                                     'tag_release'  Edison Blue Amberol  2790
                                       'tag_title'  Amina (Egyptian Serenade)
                                             'bpm'  123.3
                                    'search_title'  'amina':1 'egyptian':2,3 'serenade':4,5
                                   'search_artist'  'band':4 's':2 'sodero':1 'soderos':3
                                  'search_release'  '2790':4 'amberol':3 'blue':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '1915':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'opera':11 'prerock':9 's':8 'sodero':7 'vocal':10
                                    'search_combo'  '00oldiepop':18 '1915':19 '2790':13C 'amberol':12C 'amina':1A 'band':9B 'blue':11C 'country':17 'edison':10C 'egyptian':2A,3A 'exotica':15 'jazz':14 'oldies':16 'opera':24 'prerock':22 's':7B,21 'serenade':4A,5A 'sodero':6B,20 'soderos':8B 'vocal':23
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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'  ['instrumental', 'cylinder recordings', 'instrumentals', '1910s', 'the vitamin b12']
                                        'tag_date'  1915
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625663.4245143  (2021-05-21 21:34:23)
                             'size'  4247072