======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '166'
                                          'artist'  'UB 40'
                                     'text_people'  'Johnny Nash'
                                         'release'  "Soul Hits of the 70s: Didn't It Blow Your Mind!, Vol. 9"
                                           'title'  'I Can See Clearly Now'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-HHRNBTT-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', '80s', 'pop', 'ska', 'british']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '123.406'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000E22 00000D9A 00008635'
'COMM:iTunNORM:eng'                                 (' 00000E22 00000D9A 00008635 000094ED 00002104 000020D5 00008000 00008000 '
 '00002078 0000208F')
'PRIV:AverageLevel:+\x19\x00\x00'                   PRIV(owner='AverageLevel', data=b'+\x19\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x002\x003\x007\x007\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x000\x001\x008\x000\x007\x009\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x002\x003\x007\x007\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x000\x001\x008\x000\x007\x009\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x86uQ©l7*N\x8c¦}ð\x04#=ë'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x86uQ\xa9l7*N\x8c\xa6}\xf0\x04#=\xeb')
'PRIV:WM/WMCollectionID:\x86uQ©l7*N\x8c¦}ð\x04#=ë'  PRIV(owner='WM/WMCollectionID', data=b'\x86uQ\xa9l7*N\x8c\xa6}\xf0\x04#=\xeb')
'PRIV:WM/WMContentID:Ô\x9d-\x86Ça\x0eCª2Þ!¡Èý£'     PRIV(owner='WM/WMContentID', data=b'\xd4\x9d-\x86\xc7a\x0eC\xaa2\xde!\xa1\xc8\xfd\xa3')
'TALB' (Album/Movie/Show title)                     "Soul Hits of the 70s: Didn't It Blow Your Mind!, Vol. 9"
'TBPM' (BPM (beats per minute))                     '123.406'
'TCOM' (Composer)                                   'Johnny Nash'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'I Can See Clearly Now'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'UB 40'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Rhino'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['reggae', '80s', 'pop', 'ska', 'british']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.10 dB'
'TXXX:replaygain_track_peak'                        '0.502656'

========================== row from database ==========================
                                              'id'  1309488
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/ub40 - i can see clearly now (1).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  166
                                           'genre'  electronic-unsorted
                                        'filesize'  2668528
                                           'mtime'  1621696509
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] ub40 can see clearly now (1) electronic unsorted
                                      'tag_artist'  UB 40
                                     'tag_release'  Soul Hits of the 70s: Didn't It Blow Your Mind!, Vol. 9
                                       'tag_title'  I Can See Clearly Now
                                             'bpm'  123.406
                                    'search_title'  'can':2 'clearly':4 'i':1 'now':5 'see':3
                                   'search_artist'  '40':2 'ub':1
                                  'search_release'  '70s':5,6 '9':17 'blow':11 'didn':7 'didnt':9 'hits':2 'it':10 'mind':13,14 'of':3 'soul':1 't':8 'the':4 'vol':15,16 'your':12
                                     'search_rest'  '00poprockelectronic':1 '1':12,13 'can':8 'clearly':10 'electronic':14 'files':5,6 'loose':3,4 'now':11 'see':9 'ub40':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':25 '1':36,37 '40':7B '70s':12C,13C '9':24C 'blow':18C 'can':2A,32 'clearly':4A,34 'didn':14C 'didnt':16C 'electronic':38 'files':29,30 'hits':9C 'i':1A 'it':17C 'loose':27,28 'mind':20C,21C 'now':5A,35 'of':10C 'see':3A,33 'soul':8C 't':15C 'the':11C 'ub':6B 'ub40':31 'unsorted':26 'vol':22C,23C 'your':19C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['reggae', '80s', 'pop', 'ska', 'british']
                                        'tag_date'  1991
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696509.0296092  (2021-05-22 17:15:09)
                             'size'  2668528