======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '152'
                                          'artist'  'Pat Metheny'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Summertime'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz guitar', 'jazz fusion', 'jazz', 'guitar', 'fusion']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-unsorted'
                                             'bpm'  '127.364'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '127.364'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-unsorted'
'TIT2' (Title/songname/content description)         'Summertime'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pat Metheny'
'TXXX:Mp3gain_minmax'                               '135,195'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz guitar', 'jazz fusion', 'jazz', 'guitar', 'fusion']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.76 dB'
'TXXX:replaygain_track_peak'                        '0.614896'

========================== row from database ==========================
                                              'id'  1345842
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Pat Metheny - Summertime.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  152
                                           'genre'  prerock-jb-unsorted
                                        'filesize'  2439489
                                           'mtime'  1620541259
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] prerock jb unsorted
                                      'tag_artist'  Pat Metheny
                                     'tag_release'  None
                                       'tag_title'  Summertime
                                             'bpm'  127.364
                                    'search_title'  'summertime':1
                                   'search_artist'  'metheny':2 'pat':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'jb':8 'loose':3,4 'prerock':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':4 'files':8,9 'jb':11 'loose':6,7 'metheny':3B 'pat':2B 'prerock':10 'summertime':1A 'unsorted':5
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['jazz guitar', 'jazz fusion', 'jazz', 'guitar', 'fusion']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541258.9725559  (2021-05-09 08:20:58)
                             'size'  2439489