======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '922'
                                          'artist'  'GlerAkur'
                                     'text_people'  ''
                                         'release'  'The Mountains Are Beautiful Now'
                                           'title'  'Strings'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['instrumental', 'shoegaze', 'black metal', 'post rock', 'ambient']"
                                     'discogstags'  "['shoegaze', 'rock', 'post rock', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '5'
                                            'date'  '2017'
                                        'comments'  ''
                                           'genre'  'eid-metal-post'
                                             'bpm'  '122.363'
                                             'key'  '8A'
                                        'acoustid'  'a2c8f688-7dc2-495a-81d3-7f532813969a'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Mountains Are Beautiful Now'
'TBPM' (BPM (beats per minute))                     '122.363'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-post'
'TDOR' (Original release time)                      '2017'
'TDRC' (Recording time)                             '2017-07-21'
'TIT2' (Title/songname/content description)         'Strings'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'GlerAkur'
'TPE2' (Band/orchestra/accompaniment)               'GlerAkur'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Prophecy Productions'
'TRCK' (Track number/Position in set)               '4/5'
'TSO2'                                              'GlerAkur'
'TSOP' (Performer sort order)                       'GlerAkur'
'TXXX:ASIN'                                         'B0719MXJQY'
'TXXX:Acoustid Id'                                  'a2c8f688-7dc2-495a-81d3-7f532813969a'
'TXXX:BARCODE'                                      '0884388721920'
'TXXX:CATALOGNUMBER'                                'PRO 219'
'TXXX:MusicBrainz Album Artist Id'                  'ed931aea-048d-4085-b82d-4aa3c523d273'
'TXXX:MusicBrainz Album Id'                         '8af9bf40-ac5e-4be8-b653-4c5991fa997d'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'ed931aea-048d-4085-b82d-4aa3c523d273'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:Tagging time'                                 '2017-07-20T16:23:26'
'TXXX:discogstags'                                  ['shoegaze', 'rock', 'post rock', 'ambient']
'TXXX:lastfmtags'                                   ['instrumental', 'shoegaze', 'black metal', 'post rock', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.20 dB'
'TXXX:replaygain_track_peak'                        '0.428880'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'ad413140-0be8-4e57-90c5-59d44012a0fd')

========================== row from database ==========================
                                              'id'  1340315
                                            'path'  /data/Music/Bulk/00poprockelectronic/GlerAkur - The Mountains Are Beautiful Now/04. Strings.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  922
                                           'genre'  eid-metal-post
                                        'filesize'  37100338
                                           'mtime'  1620310527
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 04. eid metal post
                                      'tag_artist'  GlerAkur
                                     'tag_release'  The Mountains Are Beautiful Now
                                       'tag_title'  Strings
                                             'bpm'  122.363
                                    'search_title'  'strings':1
                                   'search_artist'  'akur':3 'gler':2 'glerakur':1
                                  'search_release'  'are':3 'beautiful':4 'mountains':2 'now':5 'the':1
                                     'search_rest'  '00poprockelectronic':1 '04':2,3 'eid':4 'metal':5 'post':6
                                    'search_combo'  '00poprockelectronic':10 '04':11,12 'akur':4B 'are':7C 'beautiful':8C 'eid':13 'gler':3B 'glerakur':2B 'metal':14 'mountains':6C 'now':9C 'post':15 'strings':1A 'the':5C
                                    'tag_tracknum'  4
                                      '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-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['instrumental', 'shoegaze', 'black metal', 'post rock', 'ambient']
                                        'tag_date'  2017
                                     'discogstags'  ['shoegaze', 'rock', 'post rock', 'ambient']

============================== file details ==============================
                                           'mtime'  1620310526.8679054  (2021-05-06 16:15:26)
                             'size'  37100338