======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '262'
                                          'artist'  'Secret Chiefs 3'
                                     'text_people'  ''
                                         'release'  'Xaphan: The Book Of Angels, Vol. 9'
                                           'title'  'Labbiel'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['instrumental', 'experimental rock', 'avant garde', 'experimental', "
 "'electronic']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '130.314'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x001\x00+\x009\x006\x00+\x006\x005\x005\x004\x00+\x00C\x00A\x00C\x006\x00+\x001\x003\x009\x00D\x009\x00+\x001\x00A\x000\x002\x003\x00+\x001\x00F\x001\x003\x002\x00+\x002\x003\x00E\x004\x008\x00+\x002\x008\x00B\x003\x009\x00+\x002\x00C\x009\x006\x00D\x00+\x003\x003\x00C\x003\x008\x00+\x003\x008\x002\x00D\x001\x00+\x003\x00C\x00F\x004\x001\x00+\x004\x000\x003\x00A\x005\x00+\x004\x004\x00C\x003\x00F\x00+\x004\x008\x00A\x00D\x003\x00+\x004\x00C\x009\x00D\x00E\x00+\x005\x000\x009\x002\x00C\x00+\x005\x007\x003\x009\x000\x00\x00\x00')
'PRIV:AverageLevel:{\x1c\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x1c\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Xaphan: The Book Of Angels, Vol. 9'
'TBPM' (BPM (beats per minute))                     '130.314'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Labbiel'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '262626'
'TPE1' (Lead performer(s)/Soloist(s))               'Secret Chiefs 3'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['instrumental',
 'experimental rock',
 'avant garde',
 'experimental',
 'electronic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.63 dB'
'TXXX:replaygain_track_peak'                        '0.382522'

========================== row from database ==========================
                                              'id'  1334808
                                            'path'  /data/Music/Bulk/00poprockelectronic/Secret Chiefs 3/Book of Angels/Secret Chiefs 3 - Xaphan The Book Of Angels - 07 - Labbiel.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  262
                                           'genre'  electronic-experimental
                                        'filesize'  6297779
                                           'mtime'  1636917514
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic of 07 electronic experimental
                                      'tag_artist'  Secret Chiefs 3
                                     'tag_release'  Xaphan: The Book Of Angels, Vol. 9
                                       'tag_title'  Labbiel
                                             'bpm'  130.314
                                    'search_title'  'labbiel':1
                                   'search_artist'  '3':3 'chiefs':2 'secret':1
                                  'search_release'  '9':10 'angels':6,7 'book':4 'of':5 'the':3 'vol':8,9 'xaphan':1,2
                                     'search_rest'  '00poprockelectronic':1 'electronic':3 'experimental':4 'of':2
                                    'search_combo'  '00poprockelectronic':15 '3':4B '9':14C 'angels':10C,11C 'book':8C 'chiefs':3B 'electronic':17 'experimental':18 'labbiel':1A 'of':9C,16 'secret':2B 'the':7C 'vol':12C,13C 'xaphan':5C,6C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'experimental rock', 'avant garde', 'experimental', 'electronic']
                                        'tag_date'  2008
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636917513.8614569  (2021-11-14 20:18:33)
                             'size'  6297779