======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '351'
                                          'artist'  'Stray'
                                     'text_people'  ''
                                         'release'  'Saturday Morning Pictures'
                                           'title'  'How Could I Forget You'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['ebm', 'industrial', 'progressive rock', 'electronic', 'futurepop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '124.2'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Saturday Morning Pictures'
'TBPM' (BPM (beats per minute))                     '124.2'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         'How Could I Forget You'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Stray'
'TPE2' (Band/orchestra/accompaniment)               'Stray'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['ebm', 'industrial', 'progressive rock', 'electronic', 'futurepop']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-6.39 dB'
'TXXX:replaygain_track_peak'                        '0.912439'

========================== row from database ==========================
                                              'id'  1478758
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Stray - Saturday Morning Pictures (1971)/06 - how could i forget you.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  351
                                           'genre'  rock-cppex
                                        'filesize'  14165637
                                           'mtime'  1636921793
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (1971) 06 how could forget you rock cppex
                                      'tag_artist'  Stray
                                     'tag_release'  Saturday Morning Pictures
                                       'tag_title'  How Could I Forget You
                                             'bpm'  124.2
                                    'search_title'  'could':2 'forget':4 'how':1 'i':3 'you':5
                                   'search_artist'  'stray':1
                                  'search_release'  'morning':2 'pictures':3 'saturday':1
                                     'search_rest'  '1971':2,3 'classicprogpsy':1 'could':5 'cppex':9 'forget':6 'how':4 'rock':8 'you':7
                                    'search_combo'  '1971':11,12 'classicprogpsy':10 'could':2A,14 'cppex':18 'forget':4A,15 'how':1A,13 'i':3A 'morning':8C 'pictures':9C 'rock':17 'saturday':7C 'stray':6B 'you':5A,16
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['ebm', 'industrial', 'progressive rock', 'electronic', 'futurepop']
                                        'tag_date'  1971
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636921793.4888988  (2021-11-14 21:29:53)
                             'size'  14165637