======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '151'
                                          'artist'  'Gaumont British Dance Band'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'What A Little Moonlight Can Do (vocal - Jimmy Campbell)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', '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-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '114.9'
                                             '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))                     '114.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1934-11-03'
'TIT2' (Title/songname/content description)         'What A Little Moonlight Can Do (vocal - Jimmy Campbell)'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '151000'
'TPE1' (Lead performer(s)/Soloist(s))               'Gaumont British Dance Band'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.45 dB'
'TXXX:replaygain_track_peak'                        '0.652472'

========================== row from database ==========================
                                              'id'  1464907
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/Gaumont British Dance Band - What A Little Moonlight Can Do (vocal - Jimmy Campbell) 3-11-1934.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  151
                                           'genre'  prerock-unsorted
                                        'filesize'  3061879
                                           'mtime'  1621697974
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 3 11 1934 prerock unsorted
                                      'tag_artist'  Gaumont British Dance Band
                                     'tag_release'  None
                                       'tag_title'  What A Little Moonlight Can Do (vocal - Jimmy Campbell)
                                             'bpm'  114.9
                                    'search_title'  'a':2 'campbell':10,11 'can':5 'do':6 'jimmy':9 'little':3 'moonlight':4 'vocal':7,8 'what':1
                                   'search_artist'  'band':4 'british':2 'dance':3 'gaumont':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1934':6 '3':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':20 '1934':21 '3':22 'a':2A 'band':15B 'british':13B 'campbell':10A,11A 'can':5A 'country':19 'dance':14B 'do':6A 'exotica':17 'gaumont':12B 'jazz':16 'jimmy':9A 'little':3A 'moonlight':4A 'oldies':18 'prerock':23 'unsorted':24 'vocal':7A,8A 'what':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697974.205781  (2021-05-22 17:39:34)
                             'size'  3061879