======================== unified (from filesystem) ========================
                                         'bitrate'  '179.603'
                                        'duration'  '211'
                                          'artist'  'Kal'
                                     'text_people'  ''
                                         'release'  'Radio Romanista'
                                           'title'  'Pelo IV'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-2', 'q-bass-3', "
 "'Q-CHART-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['gypsy', 'world', 'balkan', 'folk', 'serbian']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer'
                                             'bpm'  '118.0'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Radio Romanista'
'TBPM' (BPM (beats per minute))                     '118.0'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-gypsy or balkan or klezmer'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'LAME'
'TIT2' (Title/songname/content description)         'Pelo IV'
'TKEY' (Initial key)                                '4A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Kal'
'TPE2' (Band/orchestra/accompaniment)               'Kal'
'TPUB' (Publisher)                                  'Asphalt Ta (Indigo)'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['gypsy', 'world', 'balkan', 'folk', 'serbian']
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-7.27 dB'
'TXXX:replaygain_track_peak'                        '1.159068'
'WCOM:http://www.amazon.de/Radio-Romanista-Kal/dp/B001MC7TVI%3FSubscriptionId%3D0RXJS26C80QSDEB56CR2%26tag%3Dsoftpointer-20%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN%3DB001MC7TVI'  WCOM(url='http://www.amazon.de/Radio-Romanista-Kal/dp/B001MC7TVI%3FSubscriptionId%3D0RXJS26C80QSDEB56CR2%26tag%3Dsoftpointer-20%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN%3DB001MC7TVI')

========================== row from database ==========================
                                              'id'  1482058
                                            'path'  /data/Music/Bulk/00poprockelectronic/Kal - Radio Romanista (2009)/12. Kal - Pelo IV.mp3
                                         'working'  None
                                         'bitrate'  179
                                    'duration_sec'  211
                                           'genre'  loc-style-gypsy or balkan or klezmer
                                        'filesize'  4780170
                                           'mtime'  1620570270
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic (2009) 12. loc style gypsy or balkan or klezmer
                                      'tag_artist'  Kal
                                     'tag_release'  Radio Romanista
                                       'tag_title'  Pelo IV
                                             'bpm'  118.0
                                    'search_title'  'iv':2 'pelo':1
                                   'search_artist'  'kal':1
                                  'search_release'  'radio':1 'romanista':2
                                     'search_rest'  '00poprockelectronic':1 '12':4,5 '2009':2,3 'balkan':10 'gypsy':8 'klezmer':11 'loc':6 'or':9 'style':7
                                    'search_combo'  '00poprockelectronic':6 '12':9,10 '2009':7,8 'balkan':15 'gypsy':13 'iv':2A 'kal':3B 'klezmer':16 'loc':11 'or':14 'pelo':1A 'radio':4C 'romanista':5C 'style':12
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3']
                                      'lastfmtags'  ['gypsy', 'world', 'balkan', 'folk', 'serbian']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620570270.3996387  (2021-05-09 16:24:30)
                             'size'  4780170