======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '146'
                                          'artist'  'Eddie South'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Improvisation Sur Le Premier Mouvement...bach'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-JZFKS-2', '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-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['r crumb', 'violin', 'all', 'jazz', 'gypsy']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted;mi-strings-violin'
                                             'bpm'  '110.0'
                                             'key'  '10A'
                                        '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))                     '110.0'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-unsorted', 'mi-strings-violin']
'TDRC' (Recording time)                             '1937-11-23'
'TIT2' (Title/songname/content description)         'Improvisation Sur Le Premier Mouvement...bach'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '146000'
'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-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['r crumb', 'violin', 'all', 'jazz', 'gypsy']
'TXXX:q-bass'                                       '1'
'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-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.67 dB'
'TXXX:replaygain_track_peak'                        '0.487251'

========================== row from database ==========================
                                              'id'  1463672
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1937/Eddie South - Improvisation Sur Le Premier Mouvement...Bach 23-11-1937.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  146
                                           'genre'  prerock-jb-jazz-unsorted;mi-strings-violin
                                        'filesize'  2977593
                                           'mtime'  1620528077
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1937 Mouvement...Bach 23 11 1937 prerock jb jazz unsorted;mi strings violin
                                      'tag_artist'  Eddie South
                                     'tag_release'  None
                                       'tag_title'  Improvisation Sur Le Premier Mouvement...bach
                                             'bpm'  110.0
                                    'search_title'  'bach':6 'improvisation':1 'le':3 'mouvement':5 'mouvementbach':7 'premier':4 'sur':2
                                   'search_artist'  'eddie':1 'south':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1937':6 '23':10 'bach':8 'country':4 'exotica':2 'jazz':1 'jb':12 'mi':14,16 'mouvement':7 'mouvementbach':9 'oldies':3 'prerock':11 'strings':17 'unsorted':13,15 'violin':18
                                    'search_combo'  '00oldiepop':14 '1937':15 '23':19 'bach':6A,17 'country':13 'eddie':8B 'exotica':11 'improvisation':1A 'jazz':10 'jb':21 'le':3A 'mi':23,25 'mouvement':5A,16 'mouvementbach':7A,18 'oldies':12 'premier':4A 'prerock':20 'south':9B 'strings':26 'sur':2A 'unsorted':22,24 'violin':27
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['r crumb', 'violin', 'all', 'jazz', 'gypsy']
                                        'tag_date'  1937
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620528076.5323  (2021-05-09 04:41:16)
                             'size'  2977593