======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '163'
                                          'artist'  'Eddie South'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'No More Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-3', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['r crumb', 'violin', 'all', 'jazz', 'gypsy']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1933'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted;mi-strings-violin'
                                             'bpm'  '103.2'
                                             'key'  '5A'
                                        '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))                     '103.2'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-unsorted', 'mi-strings-violin']
'TDRC' (Recording time)                             '1933-05-03'
'TIT2' (Title/songname/content description)         'No More Blues'
'TKEY' (Initial key)                                '5A'
'TLEN' (Length)                                     '163000'
'TPE1' (Lead performer(s)/Soloist(s))               'Eddie South'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['r crumb', 'violin', 'all', 'jazz', 'gypsy']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.75 dB'
'TXXX:replaygain_track_peak'                        '0.689300'

========================== row from database ==========================
                                              'id'  1469365
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1933/Eddie South - No More Blues 3-5-1933.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  163
                                           'genre'  prerock-jb-jazz-unsorted;mi-strings-violin
                                        'filesize'  3308061
                                           'mtime'  1620528075
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1933 3 5 1933 prerock jb jazz unsorted;mi strings violin
                                      'tag_artist'  Eddie South
                                     'tag_release'  None
                                       'tag_title'  No More Blues
                                             'bpm'  103.2
                                    'search_title'  'blues':3 'more':2 'no':1
                                   'search_artist'  'eddie':1 'south':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1933':6 '3':7 '5':8 'country':4 'exotica':2 'jazz':1 'jb':10 'mi':12,14 'oldies':3 'prerock':9 'strings':15 'unsorted':11,13 'violin':16
                                    'search_combo'  '00oldiepop':10 '1933':11 '3':12 '5':13 'blues':3A 'country':9 'eddie':4B 'exotica':7 'jazz':6 'jb':15 'mi':17,19 'more':2A 'no':1A 'oldies':8 'prerock':14 'south':5B 'strings':20 'unsorted':16,18 'violin':21
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['r crumb', 'violin', 'all', 'jazz', 'gypsy']
                                        'tag_date'  1933
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620528074.912263  (2021-05-09 04:41:14)
                             'size'  3308061