======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '612'
                                          'artist'  'Vioolconcert in D'
                                     'text_people'  ''
                                         'release'  'Beethoven'
                                           'title'  'Vioolconcert in D - Larghetto #2'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-4', 'q-piano-1', 'q-vocals-1', 'Q-HAP-3', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-1', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '140.5'
                                             'key'  'G m'  (6A)
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_1:eng'                            '2C0E3105+272670+5+182+113530+159487+202877+234750'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '2'
'TALB' (Album/Movie/Show title)                     'Beethoven'
'TBPM' (BPM (beats per minute))                     '140.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Vioolconcert in D - Larghetto #2'
'TKEY' (Initial key)                                'G m'
'TPE1' (Lead performer(s)/Soloist(s))               'Vioolconcert in D'
'TPE2' (Band/orchestra/accompaniment)               'Vioolconcert in D'
'TRCK' (Track number/Position in set)               '02'
'TXXX:MusicMagic Data'                              'AQEAKFNujwfLybKJgQ3aGig4gwGBU4ACHlGp491OgAHEJoABgAECOa1kgFi3BoATl7qAAZ6S9licRKcGgAGvey/t0L+4PZICgAKAAQ=='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.19 dB'
'TXXX:replaygain_track_peak'                        '0.776976'

========================== row from database ==========================
                                              'id'  1494998
                                            'path'  /data/Music/Other/Pa/Klassiek/Beethoven/Vioolconcert in D/Vioolconcert in D - Larghetto #2.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  612
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  12265387
                                           'mtime'  1621094163
                                   'redo_metaread'  0
                                        'rest_str'   Pa Klassiek prerock classical or classical instruments
                                      'tag_artist'  Vioolconcert in D
                                     'tag_release'  Beethoven
                                       'tag_title'  Vioolconcert in D - Larghetto #2
                                             'bpm'  140.5
                                    'search_title'  '2':5,6 'd':3 'in':2 'larghetto':4 'vioolconcert':1
                                   'search_artist'  'd':3 'in':2 'vioolconcert':1
                                  'search_release'  'beethoven':1
                                     'search_rest'  'classical':4 'instruments':6 'klassiek':2 'or':5 'pa':1 'prerock':3
                                    'search_combo'  '2':5A,6A 'beethoven':10C 'classical':14 'd':3A,9B 'in':2A,8B 'instruments':16 'klassiek':12 'larghetto':4A 'or':15 'pa':11 'prerock':13 'vioolconcert':1A,7B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  G m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-UNU-1', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094163.3674445  (2021-05-15 17:56:03)
                             'size'  12265387