======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '264'
                                          'artist'  'Downliners Sekt'
                                     'text_people'  ''
                                         'release'  'Statement of Purpose'
                                           'title'  'The Pledge'
                                           '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-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronic', 'downtempo', 'trip hop', 'post rock', 'experimental']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '21'
                                      'tracktotal'  '99'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '144.955'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000E40 00000FF3 00011787'
'COMM:iTunNORM:eng'                                 (' 00000E40 00000FF3 00011787 00010B4B 0001E1A1 00032B53 00009333 000094B9 '
 '0003439C 00028E97')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000930 0000000000B21C40 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Statement of Purpose'
'TBPM' (BPM (beats per minute))                     '144.955'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 'iTunes v6.0.1'
'TIT2' (Title/songname/content description)         'The Pledge'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Downliners Sekt'
'TRCK' (Track number/Position in set)               '21/99'
'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'
'TXXX:lastfmtags'                                   ['electronic', 'downtempo', 'trip hop', 'post rock', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.74 dB'
'TXXX:replaygain_track_peak'                        '0.427020'

========================== row from database ==========================
                                              'id'  1310798
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Downliners Sekt/Statement Of Purpose/21 downliners sekt - the pledge.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  264
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  10789466
                                           'mtime'  1636910434
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip Of 21 downliners sekt the pledge electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Downliners Sekt
                                     'tag_release'  Statement of Purpose
                                       'tag_title'  The Pledge
                                             'bpm'  144.955
                                    'search_title'  'pledge':2 'the':1
                                   'search_artist'  'downliners':1 'sekt':2
                                  'search_release'  'of':2 'purpose':3 'statement':1
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '21':4 'acid':14 'downliners':5 'downtempo':13 'electronic':9 'hop':11 'jazz':15 'of':3 'or':12 'pledge':8 'sekt':6 'the':7 'trip':10
                                    'search_combo'  '00poprockelectronic':8 '00trip':9 '21':11 'acid':21 'downliners':3B,12 'downtempo':20 'electronic':16 'hop':18 'jazz':22 'of':6C,10 'or':19 'pledge':2A,15 'purpose':7C 'sekt':4B,13 'statement':5C 'the':1A,14 'trip':17
                                    'tag_tracknum'  21
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'downtempo', 'trip hop', 'post rock', 'experimental']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636910434.2324424  (2021-11-14 18:20:34)
                             'size'  10789466