======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '123'
                                          'artist'  'Unknown'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "My baby's not here"
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-SYN-1', 'Q-UNU-1', 'Q-PLAY-2', 'q-bass-1', "
 "'Q-CHART-2', 'Q-JZFKS-1', 'Q-OLDST-1', 'q-drums-2', 'q-other-3', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-country'
                                             'bpm'  '90.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '90.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-country'
'TIT2' (Title/songname/content description)         "My baby's not here"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Unknown'
'TXXX:MusicMagic Data'                              'AgEBWmXDiNaduIhSgWBqiGdEgAGDCIiWAyin40vog5b7NKvki8cSpbNit2mIa8pcgG+AASpzjwRRosAEiMi6oP7X2vmyjPEwgAKAAYRcpGSaxoJj/Zgo7IdIhO6GBxDVpnA1x4PQ3HuKP4kIG+qyg4wWwXSQu4HQgAHZTtwKCT2e6ICqu3ANOebooNW5xoUEgAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'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'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.57 dB'
'TXXX:replaygain_track_peak'                        '0.395994'

========================== row from database ==========================
                                              'id'  1495398
                                            'path'  /data/Music/Other/Pa/Country/My baby's not here.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  123
                                           'genre'  prerock-country
                                        'filesize'  2475696
                                           'mtime'  1621094197
                                   'redo_metaread'  0
                                        'rest_str'   Pa Country prerock country
                                      'tag_artist'  Unknown
                                     'tag_release'  None
                                       'tag_title'  My baby's not here
                                             'bpm'  90.9
                                    'search_title'  'baby':2 'babys':4 'here':6 'my':1 'not':5 's':3
                                   'search_artist'  'unknown':1
                                  'search_release'  
                                     'search_rest'  'country':2 'pa':1 'prerock':3
                                    'search_combo'  'baby':2A 'babys':4A 'country':9 'here':6A 'my':1A 'not':5A 'pa':8 'prerock':10 's':3A 'unknown':7B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094197.0424056  (2021-05-15 17:56:37)
                             'size'  2475696