======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '259'
                                          'artist'  'Stray'
                                     'text_people'  ''
                                         'release'  'Saturday Morning Pictures'
                                           'title'  'Sister Mary'
                                           '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-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['ebm', 'industrial', 'progressive rock', 'electronic', 'futurepop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '137.0'
                                             'key'  '11B'
                                        '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))                     '137.0'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         'Sister Mary'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Stray'
'TPE2' (Band/orchestra/accompaniment)               'Stray'
'TRCK' (Track number/Position in set)               '03'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-7.20 dB'
'TXXX:replaygain_track_peak'                        '0.921107'

========================== row from database ==========================
                                              'id'  1478003
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Stray - Saturday Morning Pictures (1971)/03 - sister mary.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  259
                                           'genre'  rock-cppex
                                        'filesize'  10473448
                                           'mtime'  1636921793
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (1971) 03 sister mary rock cppex
                                      'tag_artist'  Stray
                                     'tag_release'  Saturday Morning Pictures
                                       'tag_title'  Sister Mary
                                             'bpm'  137.0
                                    'search_title'  'mary':2 'sister':1
                                   'search_artist'  'stray':1
                                  'search_release'  'morning':2 'pictures':3 'saturday':1
                                     'search_rest'  '1971':2,3 'classicprogpsy':1 'cppex':7 'mary':5 'rock':6 'sister':4
                                    'search_combo'  '1971':8,9 'classicprogpsy':7 'cppex':13 'mary':2A,11 'morning':5C 'pictures':6C 'rock':12 'saturday':4C 'sister':1A,10 'stray':3B
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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'  1636921792.6645317  (2021-11-14 21:29:52)
                             'size'  10473448