======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '184'
                                          'artist'  'Billie Holiday'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'My Man'
                                           'quals'  ("['Q-OLDST-1', 'Q-GRIT-2', 'Q-BUSY-2', 'q-bass-2', 'q-drums-1', 'q-other-4', "
 "'q-piano-1', 'q-vocals-3', 'Q-HAP-3', 'Q-SYN-1', 'Q-UNU-1', 'Q-PLAY-3', "
 "'Q-CHART-4', 'Q-JZFKS-3', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb'
                                             'bpm'  '100.8'
                                             'key'  'F m'  (4A)
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_TrackNumber:eng'                  '14'
'TBPM' (BPM (beats per minute))                     '100.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb'
'TENC' (Encoded by)                                 'iTunes v4.2.0.72'
'TIT2' (Title/songname/content description)         'My Man'
'TKEY' (Initial key)                                'F m'
'TPE1' (Lead performer(s)/Soloist(s))               'Billie Holiday'
'TRCK' (Track number/Position in set)               '14'
'TXXX:MusicMagic Data'                              'AgEAA5OLgIuS4ZLhgZfw61TkgAGBoIHQ+eSgNCr8hRe6PYABi8cas7fJgj/lQoA7giWAAbJ0sOG7qqBCgAHezwkL2FLZkqFvgAKAAYGimQebMYIa6EdLuYWxgayB7QCQpXUXwYEIx5KAAYk0G/e6gYCr3qSEMYMngAG3PMNEwoaO4YABy+MOCuKlw4Wh/YACgAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '4'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.69 dB'
'TXXX:replaygain_track_peak'                        '0.511624'

========================== row from database ==========================
                                              'id'  1495318
                                            'path'  /data/Music/Other/Pa/Swing/Billie  Holiday/My  man.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  184
                                           'genre'  prerock-jb
                                        'filesize'  3698707
                                           'mtime'  1621427977
                                   'redo_metaread'  0
                                        'rest_str'   Pa Swing man prerock jb
                                      'tag_artist'  Billie Holiday
                                     'tag_release'  None
                                       'tag_title'  My Man
                                             'bpm'  100.8
                                    'search_title'  'man':2 'my':1
                                   'search_artist'  'billie':1 'holiday':2
                                  'search_release'  
                                     'search_rest'  'jb':5 'man':3 'pa':1 'prerock':4 'swing':2
                                    'search_combo'  'billie':3B 'holiday':4B 'jb':9 'man':2A,7 'my':1A 'pa':5 'prerock':8 'swing':6
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  F m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-CHART-4', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621427977.346648  (2021-05-19 14:39:37)
                             'size'  3698707