======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '860'
                                          'artist'  'George Szell, Cleveland Orchestra'
                                     'text_people'  'Strauss, Richard'
                                         'release'  'Nodame Cantabile Best100'
                                           'title'  ('Till Eulenspiegels lustige Streche, Op.28 - nach alter Scheimenweise - in '
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                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
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                                      'lastfmtags'  "['soundtrack', 'szell', 'conductor', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '7'
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '133.0'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000984 000000000242BFEC 00000000 013AE9F6 00000000 '
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'COMM:iTunes_CDDB_IDs:eng'                          '7+52FAD7785661F38A3E7D3280A94BE3C4+8532753'
'TALB' (Album/Movie/Show title)                     'Nodame Cantabile Best100'
'TBPM' (BPM (beats per minute))                     '133.0'
'TCOM' (Composer)                                   'Strauss, Richard'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '1957'
'TENC' (Encoded by)                                 'iTunes v7.0.2.16'
'TIT2' (Title/songname/content description)         ('Till Eulenspiegels lustige Streche, Op.28 - nach alter Scheimenweise - in '
 'Rondeauform')
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'George Szell, Cleveland Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '5/8'
'TRCK' (Track number/Position in set)               '7/7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soundtrack', 'szell', 'conductor', 'classical']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.15 dB'
'TXXX:replaygain_track_peak'                        '0.677074'

========================== row from database ==========================
                                              'id'  278210
                                            'path'  /data/Music/Bulk/00instruments-classical/Compilations/Nodame Cantabile Best100/5-07 Till Eulenspiegels lustige Streche, Op.28 - nach alter Scheimenweise - in Rondeauform.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  860
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  20687581
                                           'mtime'  1620561517
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Compilations 5 07 prerock classical classical instruments
                                      'tag_artist'  George Szell, Cleveland Orchestra
                                     'tag_release'  Nodame Cantabile Best100
                                       'tag_title'  Till Eulenspiegels lustige Streche, Op.28 - nach alter Scheimenweise - in Rondeauform
                                             'bpm'  133.0
                                    'search_title'  '28':7 'alter':10 'eulenspiegels':2 'in':12 'lustige':3 'nach':9 'op':6 'op28':8 'rondeauform':13 'scheimenweise':11 'streche':4,5 'till':1
                                   'search_artist'  'cleveland':4 'george':1 'orchestra':5 'szell':2,3
                                  'search_release'  'best100':3 'cantabile':2 'nodame':1
                                     'search_rest'  '00instruments':1 '5':4 'classical':2 'compilations':3 'instruments':6 'prerock':5
                                    'search_combo'  '00instruments':22 '28':7A '5':25 'alter':10A 'best100':21C 'cantabile':20C 'classical':23 'cleveland':17B 'compilations':24 'eulenspiegels':2A 'george':14B 'in':12A 'instruments':27 'lustige':3A 'nach':9A 'nodame':19C 'op':6A 'op28':8A 'orchestra':18B 'prerock':26 'rondeauform':13A 'scheimenweise':11A 'streche':4A,5A 'szell':15B,16B 'till':1A
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'szell', 'conductor', 'classical']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561517.0163116  (2021-05-09 13:58:37)
                             'size'  20687581