======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '221'
                                          'artist'  "Dave Kaplan's Melodists"
                                     'text_people'  ''
                                         'release'  'Golden Oldies 1923'
                                           'title'  'Keep Off My Shoes 9-3-1923'
                                           '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-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1923'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-dixiestyle'
                                             'bpm'  '100.8'
                                             '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'
'TALB' (Album/Movie/Show title)                     'Golden Oldies 1923'
'TBPM' (BPM (beats per minute))                     '100.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-dixiestyle'
'TDRC' (Recording time)                             '1923'
'TIT2' (Title/songname/content description)         'Keep Off My Shoes 9-3-1923'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               "Dave Kaplan's Melodists"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'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'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.82 dB'
'TXXX:replaygain_track_peak'                        '0.813259'

========================== row from database ==========================
                                              'id'  1516788
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/GOLDEN OLDIES 1923/Dave Kaplan_s Melodists - Keep Off My Shoes 9-3-1923.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  221
                                           'genre'  prerock-jb-jazz-o-dixiestyle
                                        'filesize'  4524264
                                           'mtime'  1620529191
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country GOLDEN OLDIES Kaplan_s prerock jb jazz dixiestyle
                                      'tag_artist'  Dave Kaplan's Melodists
                                     'tag_release'  Golden Oldies 1923
                                       'tag_title'  Keep Off My Shoes 9-3-1923
                                             'bpm'  100.8
                                    'search_title'  '1923':7 '3':6 '9':5 '931923':8 'keep':1 'my':3 'off':2 'shoes':4
                                   'search_artist'  'dave':1 'kaplan':2 'kaplans':4 'melodists':5 's':3
                                  'search_release'  '1923':3 'golden':1 'oldies':2
                                     'search_rest'  'country':4 'dixiestyle':10 'exotica':2 'golden':5 'jazz':1 'jb':9 'kaplan':6 'oldies':3 'prerock':8 's':7
                                    'search_combo'  '1923':7A,16C '3':6A '9':5A '931923':8A 'country':20 'dave':9B 'dixiestyle':26 'exotica':18 'golden':14C,21 'jazz':17 'jb':25 'kaplan':10B,22 'kaplans':12B 'keep':1A 'melodists':13B 'my':3A 'off':2A 'oldies':15C,19 'prerock':24 's':11B,23 'shoes':4A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1923
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620529191.1325464  (2021-05-09 04:59:51)
                             'size'  4524264