======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '185'
                                          'artist'  'Billy Cotton'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I've Gone And Lost My Little Yo Yo"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', '40s', 'wartime', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1932'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '144.9'
                                             'key'  '9A'
                                        '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))                     '144.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1932-07-19'
'TIT2' (Title/songname/content description)         "I've Gone And Lost My Little Yo Yo"
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '185000'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Cotton'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazz', '40s', 'wartime', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.50 dB'
'TXXX:replaygain_track_peak'                        '0.466667'

========================== row from database ==========================
                                              'id'  1503409
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1932/Billy Cotton - I_ve Gone And Lost My Little Yo Yo 19-7-1932.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  185
                                           'genre'  prerock-swing
                                        'filesize'  3740674
                                           'mtime'  1620559939
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1932 I_ve 19 7 1932 prerock swing
                                      'tag_artist'  Billy Cotton
                                     'tag_release'  None
                                       'tag_title'  I've Gone And Lost My Little Yo Yo
                                             'bpm'  144.9
                                    'search_title'  'and':5 'gone':4 'i':1 'ive':3 'little':8 'lost':6 'my':7 've':2 'yo':9
                                   'search_artist'  'billy':1 'cotton':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '19':9 '1932':6 '7':10 'country':4 'exotica':2 'i':7 'jazz':1 'oldies':3 'prerock':11 'swing':12 've':8
                                    'search_combo'  '00oldiepop':16 '19':20 '1932':17 '7':21 'and':5A 'billy':10B 'cotton':11B 'country':15 'exotica':13 'gone':4A 'i':1A,18 'ive':3A 'jazz':12 'little':8A 'lost':6A 'my':7A 'oldies':14 'prerock':22 'swing':23 've':2A,19 'yo':9A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', '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-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['jazz', '40s', 'wartime', 'swing']
                                        'tag_date'  1932
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620559938.7836025  (2021-05-09 13:32:18)
                             'size'  3740674