======================== unified (from filesystem) ========================
                                         'bitrate'  '197.528'
                                        'duration'  '566'
                                          'artist'  'Art Blakey & The Jazz Messengers'
                                     'text_people'  ''
                                         'release'  'At The Jazz Corner Of The World Disc 1'
                                           'title'  'Hipsippy Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-JZFKS-3', "
 "'Q-OLDST-2', 'q-syn-1', 'Q-PLAY-2', 'q-bass-3', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-3', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'instrumental', 'drums', 'swing', 'hard bop', 'bebop']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-salon or easy'
                                             'bpm'  '137.199'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'At The Jazz Corner Of The World Disc 1'
'TBPM' (BPM (beats per minute))                     '137.199'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-salon or easy'
'TIT2' (Title/songname/content description)         'Hipsippy Blues'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Art Blakey & The Jazz Messengers'
'TPE2' (Band/orchestra/accompaniment)               'Art Blakey & The Jazz Messengers'
'TRCK' (Track number/Position in set)               '1'
'TXXX:FMPS_Rating'                                  '0.4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazz', 'instrumental', 'drums', 'swing', 'hard bop', 'bebop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.04 dB'
'TXXX:replaygain_track_peak'                        '0.588945'

========================== row from database ==========================
                                              'id'  1333730
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Art Blakey & The Jazz Messengers__cifs8c9a.mp3
                                         'working'  None
                                         'bitrate'  197
                                    'duration_sec'  566
                                           'genre'  prerock-jb-jazz-soft-salon or easy
                                        'filesize'  13997209
                                           'mtime'  1620541215
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Messengers__cifs8c9a prerock jb jazz soft salon easy
                                      'tag_artist'  Art Blakey & The Jazz Messengers
                                     'tag_release'  At The Jazz Corner Of The World Disc 1
                                       'tag_title'  Hipsippy Blues
                                             'bpm'  137.199
                                    'search_title'  'blues':2 'hipsippy':1
                                   'search_artist'  'art':1 'blakey':2 'jazz':4 'messengers':5 'the':3
                                  'search_release'  '1':8 'at':1 'corner':4 'disc':7 'jazz':3 'of':5 'the':2 'world':6
                                     'search_rest'  '00poprockelectronic':1 'cifs8c9a':8 'easy':14 'files':5,6 'jazz':11 'jb':10 'loose':3,4 'messengers':7 'prerock':9 'salon':13 'soft':12 'unsorted':2
                                    'search_combo'  '00poprockelectronic':16 '1':15C 'art':3B 'at':8C 'blakey':4B 'blues':2A 'cifs8c9a':23 'corner':11C 'disc':14C 'easy':29 'files':20,21 'hipsippy':1A 'jazz':6B,10C,26 'jb':25 'loose':18,19 'messengers':7B,22 'of':12C 'prerock':24 'salon':28 'soft':27 'the':5B,9C 'unsorted':17 'world':13C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'instrumental', 'drums', 'swing', 'hard bop', 'bebop']
                                        'tag_date'  
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620541214.8495479  (2021-05-09 08:20:14)
                             'size'  13997209