======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '423'
                                          'artist'  'Red Snapper'
                                     'text_people'  ''
                                         'release'  'Prince Blimey'
                                           'title'  'Digging Doctor What What'
                                           '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-2']")
                                      'lastfmtags'  "['electronic', 'downtempo', 'acid jazz', 'trip hop', 'chillout']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '134.914'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 000003AA 000003A1 0000124F 00001384 000222F7 0002230E 000073E8 00007061 '
 '0000C37E 00027117')
'MCDI' (Music CD identifier)                        MCDI(data=b'C\x00+\x009\x006\x00+\x007\x005\x00A\x00A\x00+\x00D\x00C\x006\x009\x00+\x001\x004\x000\x006\x00E\x00+\x001\x008\x009\x003\x00B\x00+\x001\x00E\x005\x00A\x000\x00+\x002\x000\x005\x00B\x002\x00+\x002\x006\x008\x00E\x007\x00+\x002\x00B\x002\x002\x003\x00+\x002\x00F\x00D\x00A\x000\x00+\x003\x007\x009\x00B\x00A\x00+\x003\x00D\x004\x00B\x00E\x00+\x004\x003\x007\x00C\x00E\x00\x00\x00')
'PRIV:AverageLevel:$\x19\x00\x00'                   PRIV(owner='AverageLevel', data=b'$\x19\x00\x00')
'PRIV:PeakValue:ΓΏ~\x00\x00'                         PRIV(owner='PeakValue', data=b'\xff~\x00\x00')
'TALB' (Album/Movie/Show title)                     'Prince Blimey'
'TBPM' (BPM (beats per minute))                     '134.914'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Digging Doctor What What'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '423600'
'TPE1' (Lead performer(s)/Soloist(s))               'Red Snapper'
'TPE2' (Band/orchestra/accompaniment)               'Red Snapper'
'TRCK' (Track number/Position in set)               '10'
'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', 'acid jazz', 'trip hop', 'chillout']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                        '-1.42 dB'
'TXXX:replaygain_track_peak'                        '0.614906'

========================== row from database ==========================
                                              'id'  1361866
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Red Snapper/Prince Blimey/10 Digging Doctor What What.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  423
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  13542875
                                           'mtime'  1636910888
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip 10 electronic trip hop downtempo acid jazz
                                      'tag_artist'  Red Snapper
                                     'tag_release'  Prince Blimey
                                       'tag_title'  Digging Doctor What What
                                             'bpm'  134.914
                                    'search_title'  'digging':1 'doctor':2 'what':3
                                   'search_artist'  'red':1 'snapper':2
                                  'search_release'  'blimey':2 'prince':1
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 'acid':7 'downtempo':6 'electronic':3 'hop':5 'jazz':8 'trip':4
                                    'search_combo'  '00poprockelectronic':8 '00trip':9 'acid':14 'blimey':7C 'digging':1A 'doctor':2A 'downtempo':13 'electronic':10 'hop':12 'jazz':15 'prince':6C 'red':4B 'snapper':5B 'trip':11 'what':3A
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  9A
                                           '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-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'downtempo', 'acid jazz', 'trip hop', 'chillout']
                                        'tag_date'  1996
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636910887.9972134  (2021-11-14 18:28:07)
                             'size'  13542875