======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '168'
                                          'artist'  "McKinney's Cotton Pickers"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Nobody's Sweetheart 12-7-1928"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['big band', 'jazz', 'early jazz', 'dixieland', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1928'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '125.9'
                                             'key'  '4A'
                                        '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))                     '125.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1928'
'TIT2' (Title/songname/content description)         "Nobody's Sweetheart 12-7-1928"
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               "McKinney's Cotton Pickers"
'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'                                   ['big band', 'jazz', 'early jazz', 'dixieland', 'swing']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.41 dB'
'TXXX:replaygain_track_peak'                        '0.663675'

========================== row from database ==========================
                                              'id'  1526116
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/McKinney_s Cotton Pickers/McKinney_s Cotton Pickers - Nobody_s Sweetheart 12-7-1928.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  168
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3468311
                                           'mtime'  1620532588
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country McKinney_s McKinney_s Nobody_s prerock jb jazz unsorted
                                      'tag_artist'  McKinney's Cotton Pickers
                                     'tag_release'  None
                                       'tag_title'  Nobody's Sweetheart 12-7-1928
                                             'bpm'  125.9
                                    'search_title'  '12':5 '1271928':8 '1928':7 '7':6 'nobody':1 'nobodys':3 's':2 'sweetheart':4
                                   'search_artist'  'cotton':4 'kinney':7 'kinneys':9 'mc':6 'mckinney':1 'mckinneys':3 'pickers':5 's':2,8
                                  'search_release'  
                                     'search_rest'  'country':4 'exotica':2 'jazz':1 'jb':10 'kinney':13 'mc':12 'mckinney':5 'nobody':7 'oldies':3 'prerock':9 's':6,8,14 'unsorted':11
                                    'search_combo'  '12':5A '1271928':8A '1928':7A '7':6A 'cotton':12B 'country':21 'exotica':19 'jazz':18 'jb':27 'kinney':15B,30 'kinneys':17B 'mc':14B,29 'mckinney':9B,22 'mckinneys':11B 'nobody':1A,24 'nobodys':3A 'oldies':20 'pickers':13B 'prerock':26 's':2A,10B,16B,23,25,31 'sweetheart':4A 'unsorted':28
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['big band', 'jazz', 'early jazz', 'dixieland', 'swing']
                                        'tag_date'  1928
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620532587.6012561  (2021-05-09 05:56:27)
                             'size'  3468311