======================== unified (from filesystem) ========================
                                         'bitrate'  '149.558'
                                        'duration'  '218'
                                          'artist'  'Portishead'
                                     'text_people'  ''
                                         'release'  'Third'
                                           'title'  'Magic Doors'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'Q-PLAY-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-3', 'q-drums-4', 'q-other-2', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronic', 'alternative', 'female vocalists', 'trip hop']"
                                     'discogstags'  "['electronic', 'trip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '100.2'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Third'
'TBPM' (BPM (beats per minute))                     '100.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Magic Doors'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Portishead'
'TRCK' (Track number/Position in set)               '10'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME v3.96'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'trip hop']
'TXXX:lastfmtags'                                   ['electronic', 'alternative', 'female vocalists', 'trip hop']
'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-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.84 dB'
'TXXX:replaygain_track_peak'                        '0.379395'

========================== row from database ==========================
                                              'id'  1340560
                                            'path'  /data/Music/Bulk/00poprockelectronic/Portishead/Third/Portishead - Third - 10 - Magic Doors.mp3
                                         'working'  None
                                         'bitrate'  149
                                    'duration_sec'  218
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  4100303
                                           'mtime'  1636911400
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 10 electronic trip hop downtempo acid jazz
                                      'tag_artist'  Portishead
                                     'tag_release'  Third
                                       'tag_title'  Magic Doors
                                             'bpm'  100.2
                                    'search_title'  'doors':2 'magic':1
                                   'search_artist'  'portishead':1
                                  'search_release'  'third':1
                                     'search_rest'  '00poprockelectronic':1 'acid':6 'downtempo':5 'electronic':2 'hop':4 'jazz':7 'trip':3
                                    'search_combo'  '00poprockelectronic':5 'acid':10 'doors':2A 'downtempo':9 'electronic':6 'hop':8 'jazz':11 'magic':1A 'portishead':3B 'third':4C 'trip':7
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-3', 'Q-PIANO-2', '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-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'alternative', 'female vocalists', 'trip hop']
                                        'tag_date'  2008
                                     'discogstags'  ['electronic', 'trip hop']

============================== file details ==============================
                                           'mtime'  1636911399.8176897  (2021-11-14 18:36:39)
                             'size'  4100303