======================== unified (from filesystem) ========================
                                         'bitrate'  '210.038'
                                        'duration'  '707'
                                          'artist'  'Yggdrasil'
                                     'text_people'  ''
                                         'release'  'Prose Edda'
                                           'title'  "Yggdrasil / Don't Feed the Toadstools"
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['swedish', 'folk metal', 'black metal', 'viking metal', 'pagan metal']"
                                     'discogstags'  "['electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '110.0'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'POPM:no@email'                                     POPM(email='no@email', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Prose Edda'
'TBPM' (BPM (beats per minute))                     '110.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT1' (Content group description)                  '4'
'TIT2' (Title/songname/content description)         "Yggdrasil / Don't Feed the Toadstools"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Yggdrasil'
'TRCK' (Track number/Position in set)               '01'
'TXXX:DATE'                                         '2009'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'experimental']
'TXXX:lastfmtags'                                   ['swedish', 'folk metal', 'black metal', 'viking metal', 'pagan metal']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.16 dB'
'TXXX:replaygain_track_peak'                        '0.485831'

========================== row from database ==========================
                                              'id'  1496733
                                            'path'  /data/Music/Bulk/00poprockelectronic/Chronos - chillout-dub/Yggdrasil - Yggdrasil  Don_t Feed the Toadstools.mp3
                                         'working'  None
                                         'bitrate'  210
                                    'duration_sec'  707
                                           'genre'  electronic-unsorted
                                        'filesize'  18745216
                                           'mtime'  1620568603
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Chronos chillout dub Don_t electronic unsorted
                                      'tag_artist'  Yggdrasil
                                     'tag_release'  Prose Edda
                                       'tag_title'  Yggdrasil / Don't Feed the Toadstools
                                             'bpm'  110.0
                                    'search_title'  'don':2 'dont':4 'feed':5 't':3 'the':6 'toadstools':7 'yggdrasil':1
                                   'search_artist'  'yggdrasil':1
                                  'search_release'  'edda':2 'prose':1
                                     'search_rest'  '00poprockelectronic':1 'chillout':3 'chronos':2 'don':5 'dub':4 'electronic':7 't':6 'unsorted':8
                                    'search_combo'  '00poprockelectronic':11 'chillout':13 'chronos':12 'don':2A,15 'dont':4A 'dub':14 'edda':10C 'electronic':17 'feed':5A 'prose':9C 't':3A,16 'the':6A 'toadstools':7A 'unsorted':18 'yggdrasil':1A,8B
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'folk metal', 'black metal', 'viking metal', 'pagan metal']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1620568602.5135734  (2021-05-09 15:56:42)
                             'size'  18745216