======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '240'
                                          'artist'  'Valravn'
                                     'text_people'  ''
                                         'release'  'Valravn'
                                           'title'  'Krummi'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['danish', 'nordic folk', 'scandinavian folk', 'folk', 'denmark']"
                                     'discogstags'  "['folk, world, & country', 'electronic', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'loc-eur-northern-denmark'
                                             'bpm'  '104.015'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Valravn'
'TBPM' (BPM (beats per minute))                     '104.015'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-northern-denmark'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Krummi'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Valravn'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['folk, world, & country', 'electronic', 'folk']
'TXXX:lastfmtags'                                   ['danish', 'nordic folk', 'scandinavian folk', 'folk', 'denmark']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.98 dB'
'TXXX:replaygain_track_peak'                        '0.530875'

========================== row from database ==========================
                                              'id'  931775
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00scandinavia/03 Valravn (2007)/03 Krummi.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  240
                                           'genre'  loc-eur-northern-denmark
                                        'filesize'  4923897
                                           'mtime'  1621629419
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00scandinavia 03 (2007) 03 loc eur northern denmark
                                      'tag_artist'  Valravn
                                     'tag_release'  Valravn
                                       'tag_title'  Krummi
                                             'bpm'  104.015
                                    'search_title'  'krummi':1
                                   'search_artist'  'valravn':1
                                  'search_release'  'valravn':1
                                     'search_rest'  '00mid':1 '00scandinavia':4 '2007':5,6 'denmark':10 'eur':8 'europe':3 'loc':7 'north':2 'northern':9
                                    'search_combo'  '00mid':4 '00scandinavia':7 '2007':8,9 'denmark':13 'eur':11 'europe':6 'krummi':1A 'loc':10 'north':5 'northern':12 'valravn':2B,3C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['danish', 'nordic folk', 'scandinavian folk', 'folk', 'denmark']
                                        'tag_date'  2007
                                     'discogstags'  ['folk, world, & country', 'electronic', 'folk']

============================== file details ==============================
                                           'mtime'  1621629419.0718296  (2021-05-21 22:36:59)
                             'size'  4923897