======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '144'
                                          'artist'  'ultimate acapella 1'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'part 2'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '125.860'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125.860'
'TIT2' (Title/songname/content description)         'part 2'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'ultimate acapella 1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.77 dB'
'TXXX:replaygain_track_peak'                        '0.442501'

========================== row from database ==========================
                                              'id'  1308030
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/ultimate acapella 1 - part 2.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  144
                                           'genre'  
                                        'filesize'  1739126
                                           'mtime'  1652398004
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files]
                                      'tag_artist'  ultimate acapella 1
                                     'tag_release'  None
                                       'tag_title'  part 2
                                             'bpm'  125.86
                                    'search_title'  '2':2 'part':1
                                   'search_artist'  '1':3 'acapella':2 'ultimate':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':6 '1':5B '2':2A 'acapella':4B 'files':10,11 'loose':8,9 'part':1A 'ultimate':3B 'unsorted':7
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652398003.636463  (2022-05-13 01:26:43)
                             'size'  1739126