======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '156'
                                          'artist'  'Mae Questal (Betty Boop)'
                                     'text_people'  ''
                                         'release'  'Decca F 5899'
                                           'title'  'Broken Record'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-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-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1936'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '87.4'
                                             '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)                     'Decca F 5899'
'TBPM' (BPM (beats per minute))                     '87.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1936-01-08'
'TIT2' (Title/songname/content description)         'Broken Record'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '156000'
'TPE1' (Lead performer(s)/Soloist(s))               'Mae Questal (Betty Boop)'
'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: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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.06 dB'
'TXXX:replaygain_track_peak'                        '0.689797'

========================== row from database ==========================
                                              'id'  1474987
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1936/Mae Questal (Betty Boop) - Broken Record 8-1-1936.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  156
                                           'genre'  prerock-vocal
                                        'filesize'  3156618
                                           'mtime'  1620666458
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1936 1 1936 prerock vocal
                                      'tag_artist'  Mae Questal (Betty Boop)
                                     'tag_release'  Decca F 5899
                                       'tag_title'  Broken Record
                                             'bpm'  87.4
                                    'search_title'  'broken':1 'record':2
                                   'search_artist'  'betty':3,4 'boop':5,6 'mae':1 'questal':2
                                  'search_release'  '5899':3 'decca':1 'f':2
                                     'search_rest'  '00oldiepop':5 '1':7 '1936':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'vocal':9
                                    'search_combo'  '00oldiepop':16 '1':18 '1936':17 '5899':11C 'betty':5B,6B 'boop':7B,8B 'broken':1A 'country':15 'decca':9C 'exotica':13 'f':10C 'jazz':12 'mae':3B 'oldies':14 'prerock':19 'questal':4B 'record':2A 'vocal':20
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11A
                                           '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-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1936
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666457.7946308  (2021-05-10 19:07:37)
                             'size'  3156618