======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '235'
                                          'artist'  'Various'
                                     'text_people'  ''
                                         'release'  'Billboard Top 100 - 1989'
                                           'title'  'Eternal Flame'
                                           'quals'  "['q-bass-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '32'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'Pop'
                                             'bpm'  '128.6'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top 100 - 1989'
'TBPM' (BPM (beats per minute))                     '128.6'
'TCON' (Content type, a.k.a. Genre)                 'Pop'
'TIT2' (Title/songname/content description)         'Eternal Flame'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bangles'
'TPE2' (Band/orchestra/accompaniment)               'Various'
'TRCK' (Track number/Position in set)               '32'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.52 dB'
'TXXX:replaygain_track_peak'                        '0.606184'

========================== row from database ==========================
                                              'id'  1538077
                                            'path'  /data/Music/Other/PrevSet/[0yay1]/The Bangles/Eternal Flame.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  235
                                           'genre'  Pop
                                        'filesize'  4716332
                                           'mtime'  1662800296
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [0yay1] The Bangles Pop
                                      'tag_artist'  Various
                                     'tag_release'  Billboard Top 100 - 1989
                                       'tag_title'  Eternal Flame
                                             'bpm'  128.6
                                    'search_title'  'eternal':1 'flame':2
                                   'search_artist'  'various':1
                                  'search_release'  '100':3 '1989':4 'billboard':1 'top':2
                                     'search_rest'  '0yay1':2,3 'bangles':5 'pop':6 'prev':7 'prevset':1 'set':8 'the':4
                                    'search_combo'  '0yay1':9,10 '100':6C '1989':7C 'bangles':12 'billboard':4C 'eternal':1A 'flame':2A 'pop':13 'prev':14 'prevset':8 'set':15 'the':11 'top':5C 'various':3B
                                    'tag_tracknum'  32
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['q-bass-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800296.3770459  (2022-09-10 10:58:16)
                             'size'  4716332