======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '180'
                                          'artist'  'Louis Armstrong'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Flat Foot Floogie (+ Mills Brothers)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'jazz', 'trumpet', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1938'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '94.0'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '94.0'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-unsorted', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1938-06-10'
'TIT2' (Title/songname/content description)         'Flat Foot Floogie (+ Mills Brothers)'
'TKEY' (Initial key)                                '12B'
'TLEN' (Length)                                     '180000'
'TPE1' (Lead performer(s)/Soloist(s))               'Louis Armstrong'
'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'                                   ['blues', 'jazz', 'trumpet', 'oldies', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.96 dB'
'TXXX:replaygain_track_peak'                        '0.531675'

========================== row from database ==========================
                                              'id'  1458837
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1938/Louis Armstrong - Flat Foot Floogie (+ Mills Brothers) 10-6-1938.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  180
                                           'genre'  prerock-jb-jazz-unsorted;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  3655432
                                           'mtime'  1620526679
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1938 10 6 1938 prerock jb jazz unsorted;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Louis Armstrong
                                     'tag_release'  None
                                       'tag_title'  Flat Foot Floogie (+ Mills Brothers)
                                             'bpm'  94.0
                                    'search_title'  'brothers':5,6 'flat':1 'floogie':3 'foot':2 'mills':4
                                   'search_artist'  'armstrong':2 'louis':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1938':6 '6':7 'country':4 'exotica':2 'jazz':1 'jb':9 'mor':19 'oldies':3 'pl':14 'prerock':8 'set':11,13,16,18 'shirleyspinoza':15,17 'unsorted':10,12
                                    'search_combo'  '00oldiepop':13 '1938':14 '6':15 'armstrong':8B 'brothers':5A,6A 'country':12 'exotica':10 'flat':1A 'floogie':3A 'foot':2A 'jazz':9 'jb':17 'louis':7B 'mills':4A 'mor':27 'oldies':11 'pl':22 'prerock':16 'set':19,21,24,26 'shirleyspinoza':23,25 'unsorted':18,20
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'jazz', 'trumpet', 'oldies', 'swing']
                                        'tag_date'  1938
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526678.6367962  (2021-05-09 04:17:58)
                             'size'  3655432