======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '253'
                                          'artist'  'Milli Vanilli'
                                     'text_people'  ''
                                         'release'  "Playback 80's - 90's"
                                           'title'  "Girld U Know It's True"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-3', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'german', 'hip hop', 'pop', 'rnb']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '130.314'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000AE2 00000A75 0000953E'
'COMM:iTunNORM:eng'                                 (' 00000AE2 00000A75 0000953E 00008742 00031A77 000316BF 00008000 00008000 '
 '00004307 0000860F')
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x002\x00+\x009\x006\x00+\x006\x009\x000\x003\x00+\x00B\x004\x000\x00A\x00+\x001\x000\x003\x00C\x007\x00+\x001\x003\x00C\x002\x001\x00+\x001\x00A\x003\x001\x004\x00+\x001\x00E\x004\x00A\x003\x00+\x002\x002\x007\x006\x007\x00+\x002\x006\x004\x00B\x00B\x00+\x002\x00A\x007\x008\x00F\x00+\x002\x00F\x001\x00E\x006\x00+\x003\x003\x008\x00B\x003\x00+\x003\x008\x001\x00B\x005\x00+\x003\x00D\x00B\x001\x00D\x00+\x004\x002\x003\x009\x008\x00+\x004\x005\x00D\x009\x00F\x00+\x004\x00A\x009\x00E\x004\x00+\x005\x000\x007\x001\x00C\x00+\x005\x004\x006\x00F\x004\x00\x00\x00')
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'PRIV:PeakValue:¡x\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1x\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:U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00'  PRIV(owner='WM/Provider', data=b'U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/WMCollectionID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMCollectionID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/WMContentID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMContentID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     "Playback 80's - 90's"
'TBPM' (BPM (beats per minute))                     '130.314'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         "Girld U Know It's True"
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '253746'
'TPE1' (Lead performer(s)/Soloist(s))               'Milli Vanilli'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'german', 'hip hop', 'pop', 'rnb']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.08 dB'
'TXXX:replaygain_track_peak'                        '0.554937'

========================== row from database ==========================
                                              'id'  1509040
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/girld u know it_s true.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  253
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  4053839
                                           'mtime'  1620573138
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] girld know it_s true hip hop or rnb or rap or turntablism
                                      'tag_artist'  Milli Vanilli
                                     'tag_release'  Playback 80's - 90's
                                       'tag_title'  Girld U Know It's True
                                             'bpm'  130.314
                                    'search_title'  'girld':1 'it':4 'its':6 'know':3 's':5 'true':7 'u':2
                                   'search_artist'  'milli':1 'vanilli':2
                                  'search_release'  '80':2 '80s':4 '90':5 '90s':7 'playback':1 's':3,6
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'girld':7 'hip':12 'hop':13 'it':9 'know':8 'loose':3,4 'or':14 'rap':16 'rnb':15 's':10 'true':11 'turntablism':17 'unsorted':2
                                    'search_combo'  '00poprockelectronic':17 '80':11C '80s':13C '90':14C '90s':16C 'files':21,22 'girld':1A,23 'hip':28 'hop':29 'it':4A,25 'its':6A 'know':3A,24 'loose':19,20 'milli':8B 'or':30 'playback':10C 'rap':32 'rnb':31 's':5A,12C,15C,26 'true':7A,27 'turntablism':33 'u':2A 'unsorted':18 'vanilli':9B
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'german', 'hip hop', 'pop', 'rnb']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573138.3642335  (2021-05-09 17:12:18)
                             'size'  4053839