======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '170'
                                          'artist'  'State Street Ramblers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Someday You'll Know 19-7-1928"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'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'  '105.7'
                                             'key'  '6A'
                                        '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))                     '105.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-dixiestyle'
'TDRC' (Recording time)                             '1928'
'TIT2' (Title/songname/content description)         "Someday You'll Know 19-7-1928"
'TKEY' (Initial key)                                '6A'
'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'                                       '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.09 dB'
'TXXX:replaygain_track_peak'                        '0.786685'

========================== row from database ==========================
                                              'id'  1508538
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/State Street Ramblers/State Street Ramblers - Someday You_ll Know 19-7-1928.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  170
                                           'genre'  prerock-jb-jazz-o-dixiestyle
                                        'filesize'  3480578
                                           'mtime'  1620535640
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country You_ll prerock jb jazz dixiestyle
                                      'tag_artist'  State Street Ramblers
                                     'tag_release'  None
                                       'tag_title'  Someday You'll Know 19-7-1928
                                             'bpm'  105.7
                                    'search_title'  '19':6 '1928':8 '1971928':9 '7':7 'know':5 'll':3 'someday':1 'you':2 'youll':4
                                   'search_artist'  'ramblers':3 'state':1 'street':2
                                  'search_release'  
                                     'search_rest'  'country':4 'dixiestyle':9 'exotica':2 'jazz':1 'jb':8 'll':6 'oldies':3 'prerock':7 'you':5
                                    'search_combo'  '19':6A '1928':8A '1971928':9A '7':7A 'country':16 'dixiestyle':21 'exotica':14 'jazz':13 'jb':20 'know':5A 'll':3A,18 'oldies':15 'prerock':19 'ramblers':12B 'someday':1A 'state':10B 'street':11B 'you':2A,17 'youll':4A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           '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-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'vocal jazz', 'oldies', 'traditional jazz', 'swing']
                                        'tag_date'  1928
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620535640.39432  (2021-05-09 06:47:20)
                             'size'  3480578