======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '862'
                                          'artist'  'Sammartini'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Viola pomposa  concert'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-2', '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'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '125.8'
                                             'key'  'A#m'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125.8'
'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)         'Viola pomposa  concert'
'TKEY' (Initial key)                                'A#m'
'TPE1' (Lead performer(s)/Soloist(s))               'Sammartini'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBWovVhTW6pr7bgXXF50zfgAGC/4ACP6exRiELgAHwZIABgAExFK9kgAGp/pA/ic2AAedIMmvVioABgAHM1jPO1Ie57bhWgAKAAZVOu+S1CINT7q5K4Jbeg12BXROWoMkZDYA7zg+AAYD9CJWuqIABupKDv4YbgAHFhRH43pqAAYABv7AaLOtqp7aqCIACgAE='
'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'                                       '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.13 dB'
'TXXX:replaygain_track_peak'                        '0.525155'

========================== row from database ==========================
                                              'id'  1495146
                                            'path'  /data/Music/Other/Pa/Klassiek/Viola pomposa  concert.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  862
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  17253782
                                           'mtime'  1621094170
                                   'redo_metaread'  0
                                        'rest_str'   Pa Klassiek prerock classical or classical instruments
                                      'tag_artist'  Sammartini
                                     'tag_release'  None
                                       'tag_title'  Viola pomposa  concert
                                             'bpm'  125.8
                                    'search_title'  'concert':3 'pomposa':2 'viola':1
                                   'search_artist'  'sammartini':1
                                  'search_release'  
                                     'search_rest'  'classical':4 'instruments':6 'klassiek':2 'or':5 'pa':1 'prerock':3
                                    'search_combo'  'classical':8 'concert':3A 'instruments':10 'klassiek':6 'or':9 'pa':5 'pomposa':2A 'prerock':7 'sammartini':4B 'viola':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  A#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-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094169.5352132  (2021-05-15 17:56:09)
                             'size'  17253782