======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '410'
                                          'artist'  'Bryan Adams'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Heaven (ultrasound extended version)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-3', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'canadian', 'classic rock', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '142.809'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '142.809'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Heaven (ultrasound extended version)'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bryan Adams'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'canadian', 'classic rock', 'pop', 'rock']
'TXXX:other'                                        'B'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+7.91 dB'
'TXXX:replaygain_track_peak'                        '0.156334'
'TXXX:ÿþudaritno4'                                  '11'

========================== row from database ==========================
                                              'id'  1302474
                                            'path'  /data/Music/Bulk/00poprockelectronic/1985 complete/111-B Bryan Adams - Heaven (ultrasound extended version).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  410
                                           'genre'  rock-cppex
                                        'filesize'  16424300
                                           'mtime'  1620736987
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1985 complete 111 rock cppex
                                      'tag_artist'  Bryan Adams
                                     'tag_release'  None
                                       'tag_title'  Heaven (ultrasound extended version)
                                             'bpm'  142.809
                                    'search_title'  'extended':4 'heaven':1 'ultrasound':2,3 'version':5,6
                                   'search_artist'  'adams':2 'bryan':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '111':4 '1985':2 'complete':3 'cppex':6 'rock':5
                                    'search_combo'  '00poprockelectronic':9 '111':12 '1985':10 'adams':8B 'bryan':7B 'complete':11 'cppex':14 'extended':4A 'heaven':1A 'rock':13 'ultrasound':2A,3A 'version':5A,6A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'canadian', 'classic rock', 'pop', 'rock']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736987.099298  (2021-05-11 14:43:07)
                             'size'  16424300