======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '206'
                                          'artist'  'State Street Ramblers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Yearning And Blue 18-7-1928'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'vocal jazz', 'oldies', 'traditional jazz', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1928'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-dixiestyle'
                                             'bpm'  '98.5'
                                             'key'  '8A'
                                        '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))                     '98.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-dixiestyle'
'TDRC' (Recording time)                             '1928'
'TIT2' (Title/songname/content description)         'Yearning And Blue 18-7-1928'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'State Street Ramblers'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazz', 'vocal jazz', 'oldies', 'traditional jazz', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.69 dB'
'TXXX:replaygain_track_peak'                        '0.778708'

========================== row from database ==========================
                                              'id'  1471029
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/State Street Ramblers/State Street Ramblers - Yearning And Blue 18-7-1928.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  206
                                           'genre'  prerock-jb-jazz-o-dixiestyle
                                        'filesize'  4205736
                                           'mtime'  1620535666
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country prerock jb jazz o dixiestyle
                                      'tag_artist'  State Street Ramblers
                                     'tag_release'  None
                                       'tag_title'  Yearning And Blue 18-7-1928
                                             'bpm'  98.5
                                    'search_title'  '18':4 '1871928':7 '1928':6 '7':5 'and':2 'blue':3 'yearning':1
                                   'search_artist'  'ramblers':3 'state':1 'street':2
                                  'search_release'  
                                     'search_rest'  'country':4 'dixiestyle':8 'exotica':2 'jazz':1 'jb':6 'o':7 'oldies':3 'prerock':5
                                    'search_combo'  '18':4A '1871928':7A '1928':6A '7':5A 'and':2A 'blue':3A 'country':14 'dixiestyle':18 'exotica':12 'jazz':11 'jb':16 'o':17 'oldies':13 'prerock':15 'ramblers':10B 'state':8B 'street':9B 'yearning':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           '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-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'vocal jazz', 'oldies', 'traditional jazz', 'swing']
                                        'tag_date'  1928
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620535666.2775857  (2021-05-09 06:47:46)
                             'size'  4205736