======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '285'
                                          'artist'  'Matty D.'
                                     'text_people'  'Mat'
                                         'release'  ''
                                           'title'  'The Revival of the Doctor'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-2', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '143'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 000007F9 000008C6 0000F715 0000ECEB 0002F2B1 000289CB 0000D717 0000C22B '
 '0004057D 00040BEB')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A46 0000000000C065AA 00000000 0068A7D7 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TBPM' (BPM (beats per minute))                     '143'
'TCOM' (Composer)                                   'Mat'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-series'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'iTunes v7.2'
'TIT2' (Title/songname/content description)         'The Revival of the Doctor'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Matty D.'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.27 dB'
'TXXX:replaygain_track_peak'                        '0.709698'

========================== row from database ==========================
                                              'id'  979997
                                            'path'  /data/Music/Bulk/0soundtrack/Dr Who - Collection/Dr Who - The Revival Of The Doctor - By Matty D.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  285
                                           'genre'  soundtrack-video-series
                                        'filesize'  6865950
                                           'mtime'  1636921543
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Dr Who Collection Dr Who Of By soundtrack video series
                                      'tag_artist'  Matty D.
                                     'tag_release'  None
                                       'tag_title'  The Revival of the Doctor
                                             'bpm'  143.0
                                    'search_title'  'doctor':4 'of':3 'revival':2 'the':1
                                   'search_artist'  'd':2,3 'matty':1
                                  'search_release'  
                                     'search_rest'  '0soundtrack':1 'by':6 'collection':4 'dr':2 'of':5 'series':9 'soundtrack':7 'video':8 'who':3
                                    'search_combo'  '0soundtrack':8 'by':13 'collection':11 'd':6B,7B 'doctor':4A 'dr':9 'matty':5B 'of':3A,12 'revival':2A 'series':16 'soundtrack':14 'the':1A 'video':15 'who':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636921542.9926293  (2021-11-14 21:25:42)
                             'size'  6865950