======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '184'
                                          'artist'  "McKinney's Cotton Pickers"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I'd Love It 6-11-1929"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', '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-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['big band', 'jazz', 'early jazz', 'dixieland', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1929'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '104.4'
                                             '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))                     '104.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1929'
'TIT2' (Title/songname/content description)         "I'd Love It 6-11-1929"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '184000'
'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'                                       '2'
'TXXX:q-busy'                                       '2'
'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'                        '+1.53 dB'
'TXXX:replaygain_track_peak'                        '0.476434'

========================== row from database ==========================
                                              'id'  1502353
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1929/McKinney_s Cotton Pickers - I_d Love It 6-11-1929.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  184
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3785960
                                           'mtime'  1620525802
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop McKinney_s I_d prerock jb jazz unsorted
                                      'tag_artist'  McKinney's Cotton Pickers
                                     'tag_release'  None
                                       'tag_title'  I'd Love It 6-11-1929
                                             'bpm'  104.4
                                    'search_title'  '11':7 '1929':8 '6':6 '6111929':9 'd':2 'i':1 'id':3 'it':5 'love':4
                                   'search_artist'  'cotton':4 'kinney':7 'kinneys':9 'mc':6 'mckinney':1 'mckinneys':3 'pickers':5 's':2,8
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 'country':4 'd':9 'exotica':2 'i':8 'jazz':1 'jb':11 'kinney':14 'mc':13 'mckinney':6 'oldies':3 'prerock':10 's':7,15 'unsorted':12
                                    'search_combo'  '00oldiepop':23 '11':7A '1929':8A '6':6A '6111929':9A 'cotton':13B 'country':22 'd':2A,27 'exotica':20 'i':1A,26 'id':3A 'it':5A 'jazz':19 'jb':29 'kinney':16B,32 'kinneys':18B 'love':4A 'mc':15B,31 'mckinney':10B,24 'mckinneys':12B 'oldies':21 'pickers':14B 'prerock':28 's':11B,17B,25,33 'unsorted':30
                                    '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['big band', 'jazz', 'early jazz', 'dixieland', 'swing']
                                        'tag_date'  1929
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620525802.214908  (2021-05-09 04:03:22)
                             'size'  3785960