======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '378'
                                          'artist'  'The Prodigy'
                                     'text_people'  ''
                                         'release'  'Poison'
                                           'title'  'Poison (Environmental Science'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial', 'dance', 'techno', 'electronic', 'electronica']"
                                     'discogstags'  "['electronic', 'techno', 'big beat']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '103.908'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'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')
'TALB' (Album/Movie/Show title)                     'Poison'
'TBPM' (BPM (beats per minute))                     '103.908'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Poison (Environmental Science'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Prodigy'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'techno', 'big beat']
'TXXX:lastfmtags'                                   ['industrial', 'dance', 'techno', 'electronic', 'electronica']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.32 dB'
'TXXX:replaygain_track_peak'                        '0.851685'

========================== row from database ==========================
                                              'id'  1337233
                                            'path'  /data/Music/Bulk/00poprockelectronic/Prodigy/#singles/10. Poison (1995)/04 - Poison (Environmental Science.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  378
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  15164163
                                           'mtime'  1636911387
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic #singles 10. (1995) 04 electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  The Prodigy
                                     'tag_release'  Poison
                                       'tag_title'  Poison (Environmental Science
                                             'bpm'  103.908
                                    'search_title'  'environmental':2,3 'poison':1 'science':4
                                   'search_artist'  'prodigy':2 'the':1
                                  'search_release'  'poison':1
                                     'search_rest'  '00poprockelectronic':1 '10':4,5 '1995':6,7 'acid':13 'downtempo':12 'electronic':8 'hop':10 'jazz':14 'or':11 'singles':2,3 'trip':9
                                    'search_combo'  '00poprockelectronic':8 '10':11,12 '1995':13,14 'acid':20 'downtempo':19 'electronic':15 'environmental':2A,3A 'hop':17 'jazz':21 'or':18 'poison':1A,7C 'prodigy':6B 'science':4A 'singles':9,10 'the':5B 'trip':16
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'dance', 'techno', 'electronic', 'electronica']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic', 'techno', 'big beat']

============================== file details ==============================
                                           'mtime'  1636911386.8613896  (2021-11-14 18:36:26)
                             'size'  15164163