======================== unified (from filesystem) ========================
                                         'bitrate'  '319.985'
                                        'duration'  '214'
                                          'artist'  'Lou Donaldson'
                                     'text_people'  'Lou Donaldson'
                                         'release'  'radio jazz 13'
                                           'title'  'The Thang'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-1']")
                                      'lastfmtags'  "['blue note', 'jazz', 'saxophone', 'soul jazz', 'funk']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '89.4'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'PRIV:WM/WMCollectionID:\x8d\x91NÂÃOï@¥Î\x813ézm0'  PRIV(owner='WM/WMCollectionID', data=b'\x8d\x91N\xc2\xc3O\xef@\xa5\xce\x813\xe9zm0')
'PRIV:WM/WMContentID:ß\x99Îf\x0f\x17ÐN\x83/»ù\x07ÍB×'  PRIV(owner='WM/WMContentID', data=b'\xdf\x99\xcef\x0f\x17\xd0N\x83/\xbb\xf9\x07\xcdB\xd7')
'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '89.4'
'TCOM' (Composer)                                   'Lou Donaldson'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'The Thang'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lou Donaldson'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Blue Note'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:REPLAYGAIN_REFERENCE_LOUDNESS'                'EPLAYGA'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['blue note', 'jazz', 'saxophone', 'soul jazz', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '1.007657'

========================== row from database ==========================
                                              'id'  1482481
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Lou Donaldson - the thang.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  214
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  8721749
                                           'mtime'  1620541480
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic the thang prerock jb unsorted
                                      'tag_artist'  Lou Donaldson
                                     'tag_release'  radio jazz 13
                                       'tag_title'  The Thang
                                             'bpm'  89.4
                                    'search_title'  'thang':2 'the':1
                                   'search_artist'  'donaldson':2 'lou':1
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'jb':5 'prerock':4 'thang':3 'the':2 'unsorted':6
                                    'search_combo'  '00poprockelectronic':7 'donaldson':4B 'jazz':6C 'jb':11 'lou':3B 'prerock':10 'radio':5C 'thang':2A,9 'the':1A,8 'unsorted':12
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['blue note', 'jazz', 'saxophone', 'soul jazz', 'funk']
                                        'tag_date'  1967
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620541480.403183  (2021-05-09 08:24:40)
                             'size'  8721749