======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '231'
                                          'artist'  'Anois'
                                     'text_people'  ''
                                         'release'  'Tracery On A Frosted Window EP'
                                           'title'  'Tracery On A Frosted Window'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'celtic', 'electronic', 'folk']"
                                     'discogstags'  "['electronic', 'rock', 'acoustic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie'
                                             'bpm'  '109.527'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'7\x00+\x009\x006\x00+\x003\x00E\x00F\x00E\x00+\x009\x000\x00D\x004\x00+\x00D\x004\x00E\x007\x00+\x00F\x00D\x001\x00B\x00+\x001\x004\x009\x00C\x005\x00+\x001\x00A\x000\x00F\x000\x00+\x001\x00E\x003\x007\x00E\x00\x00\x00')
'PRIV:AverageLevel:E\x16\x00\x00'                   PRIV(owner='AverageLevel', data=b'E\x16\x00\x00')
'PRIV:PeakValue:¢g\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa2g\x00\x00')
'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')
'PRIV:WM/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Tracery On A Frosted Window EP'
'TBPM' (BPM (beats per minute))                     '109.527'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Tracery On A Frosted Window'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '232360'
'TPE1' (Lead performer(s)/Soloist(s))               'Anois'
'TPE2' (Band/orchestra/accompaniment)               'Anois'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'rock', 'acoustic']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'celtic', 'electronic', 'folk']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.97 dB'
'TXXX:replaygain_track_peak'                        '0.382465'

========================== row from database ==========================
                                              'id'  1279371
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Anois/Tracery On A Frosted Window/03 tracery on a frosted window.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  231
                                           'genre'  ifs-songwriter-indie
                                        'filesize'  5586332
                                           'mtime'  1636400580
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 03 tracery on frosted window ifs songwriter indie
                                      'tag_artist'  Anois
                                     'tag_release'  Tracery On A Frosted Window EP
                                       'tag_title'  Tracery On A Frosted Window
                                             'bpm'  109.527
                                    'search_title'  'a':3 'frosted':4 'on':2 'tracery':1 'window':5
                                   'search_artist'  'anois':1
                                  'search_release'  'a':3 'ep':6 'frosted':4 'on':2 'tracery':1 'window':5
                                     'search_rest'  '00singer':1 'eos':3 'frosted':6 'ifs':8 'indie':9 'on':5 'songwriter':2 'tracery':4 'window':7
                                    'search_combo'  '00singer':13 'a':3A,9C 'anois':6B 'eos':15 'ep':12C 'frosted':4A,10C,18 'ifs':20 'indie':21 'on':2A,8C,17 'songwriter':14 'tracery':1A,7C,16 'window':5A,11C,19
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'celtic', 'electronic', 'folk']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic', 'rock', 'acoustic']

============================== file details ==============================
                                           'mtime'  1636400580.3650682  (2021-11-08 20:43:00)
                             'size'  5586332