======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '140'
                                          'artist'  'Camille Saint-Sakns'
                                     'text_people'  ''
                                         'release'  'Fallout 4 OST (Classic radio station)'
                                           'title'  'Le carnaval des animaux (cuckoos)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-3', 'q-drums-1', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '29'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'soundtrack-game'
                                             'bpm'  '113.964'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Fallout 4 OST (Classic radio station)'
'TBPM' (BPM (beats per minute))                     '113.964'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-game'
'TIT2' (Title/songname/content description)         'Le carnaval des animaux (cuckoos)'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Camille Saint-Sakns'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4/29'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf53.30.100'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'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'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.43 dB'
'TXXX:replaygain_track_peak'                        '0.582273'

========================== row from database ==========================
                                              'id'  739707
                                            'path'  /data/Music/Bulk/0soundtrack/Fallout 4 - Classical Radio/04. Camille Saint-Saëns - Le carnaval des animaux (cuckoos).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  140
                                           'genre'  soundtrack-game
                                        'filesize'  2243592
                                           'mtime'  1623433158
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Classical Radio 04. Saëns soundtrack game
                                      'tag_artist'  Camille Saint-Sakns
                                     'tag_release'  Fallout 4 OST (Classic radio station)
                                       'tag_title'  Le carnaval des animaux (cuckoos)
                                             'bpm'  113.964
                                    'search_title'  'animaux':4 'carnaval':2 'cuckoos':5,6 'des':3 'le':1
                                   'search_artist'  'camille':1 'saint':2 'saintsakns':4 'sakns':3
                                  'search_release'  '4':2 'classic':4,5 'fallout':1 'ost':3 'radio':6 'station':7,8
                                     'search_rest'  '04':4,5 '0soundtrack':1 'classical':2 'game':9 'radio':3 'saens':6,7 'soundtrack':8
                                    'search_combo'  '04':22,23 '0soundtrack':19 '4':12C 'animaux':4A 'camille':7B 'carnaval':2A 'classic':14C,15C 'classical':20 'cuckoos':5A,6A 'des':3A 'fallout':11C 'game':27 'le':1A 'ost':13C 'radio':16C,21 'saens':24,25 'saint':8B 'saintsakns':10B 'sakns':9B 'soundtrack':26 'station':17C,18C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1623433158.066537  (2021-06-11 19:39:18)
                             'size'  2243592