======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '181'
                                          'artist'  'Разные исполнители'
                                     'text_people'  'Karim Salzburger'
                                         'release'  'Compilation vol\u200b.\u200b2'
                                           'title'  'Life Circle'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-3', 'Q-JZFKS-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  '24'
                                            'date'  '2017'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism-chillhop'
                                             'bpm'  '125.3'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Compilation vol\u200b.\u200b2'
'TBPM' (BPM (beats per minute))                     '125.3'
'TCOM' (Composer)                                   'Karim Salzburger'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism-chillhop'
'TDRC' (Recording time)                             '2017'
'TIT2' (Title/songname/content description)         'Life Circle'
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '181'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Mr. Käfer'
'TPE2' (Band/orchestra/accompaniment)               'Разные исполнители'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '02/24'
'TXXX:Artists'                                      'Mr. Käfer'
'TXXX:BARCODE'                                      '3614978320250'
'TXXX:COMPILATION'                                  '0'
'TXXX:EXPLICIT'                                     '0'
'TXXX:ISRC'                                         'FR9Z61700045'
'TXXX:LABEL'                                        'Hip Dozer'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:RELEASETYPE'                                  'Album'
'TXXX:SOURCE'                                       'Deezer'
'TXXX:SOURCEID'                                     '413413832'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.28 dB'
'TXXX:replaygain_track_peak'                        '0.610239'

========================== row from database ==========================
                                              'id'  1243265
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Разные исполнители - 2017 - Compilation vol​.​2/02. Mr. Käfer - Life Circle.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  181
                                           'genre'  hip hop or rnb or rap or turntablism-chillhop
                                        'filesize'  7364142
                                           'mtime'  1620592703
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism 2017 02. Mr. Käfer hip hop or rnb or rap or turntablism chillhop
                                      'tag_artist'  Разные исполнители
                                     'tag_release'  Compilation vol​.​2
                                       'tag_title'  Life Circle
                                             'bpm'  125.3
                                    'search_title'  'circle':2 'life':1
                                   'search_artist'  'ispolniteli':4 'raznye':2 'исполнители':3 'разные':1
                                  'search_release'  '2':3 'compilation':1 'vol​':2 'vol​​2':4
                                     'search_rest'  '02':6,7 '2017':5 'chillhop':15 'hip':12 'hiphop':1 'hop':13 'kafer':10,11 'mr':8,9 'or':14 'rap':2 'rnb':3 'turntablism':4
                                    'search_combo'  '02':16,17 '2':9C '2017':15 'chillhop':25 'circle':2A 'compilation':7C 'hip':22 'hiphop':11 'hop':23 'ispolniteli':6B 'kafer':20,21 'life':1A 'mr':18,19 'or':24 'rap':12 'raznye':4B 'rnb':13 'turntablism':14 'vol​':8C 'vol​​2':10C 'исполнители':5B 'разные':3B
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2017
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620592703.0482793  (2021-05-09 22:38:23)
                             'size'  7364142