======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '267'
                                          'artist'  'Dr Who'
                                     'text_people'  'Bev'
                                         'release'  ''
                                           'title'  'An Apple A Day'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'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-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['doctor who', 'soundtrack', 'awesome', 'british', 'audiobook']"
                                     'discogstags'  "['house', 'electronic', 'euro house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '123'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000237 000000B4 00002E77 0000144B 0002425E 000215C6 00007954 000073C4 '
 '0000D924 000146D6')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A65 0000000000B3E18B 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TBPM' (BPM (beats per minute))                     '123'
'TCOM' (Composer)                                   'Bev'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-series'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'An Apple A Day'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bev'
'TPE2' (Band/orchestra/accompaniment)               'Dr Who'
'TSSE' (Software/Hardware and settings used for encoding)  'GarageBand 4.1.2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['house', 'electronic', 'euro house']
'TXXX:lastfmtags'                                   ['doctor who', 'soundtrack', 'awesome', 'british', 'audiobook']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.20 dB'
'TXXX:replaygain_track_peak'                        '0.927696'

========================== row from database ==========================
                                              'id'  980063
                                            'path'  /data/Music/Bulk/0soundtrack/Dr Who - Collection/Dr Who - An Apple A Day - By Bev.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  267
                                           'genre'  soundtrack-video-series
                                        'filesize'  4282327
                                           'mtime'  1636921501
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Collection By Bev soundtrack video series
                                      'tag_artist'  Dr Who
                                     'tag_release'  None
                                       'tag_title'  An Apple A Day
                                             'bpm'  123.0
                                    'search_title'  'a':3 'an':1 'apple':2 'day':4
                                   'search_artist'  'dr':1 'who':2
                                  'search_release'  
                                     'search_rest'  '0soundtrack':1 'bev':4 'by':3 'collection':2 'series':7 'soundtrack':5 'video':6
                                    'search_combo'  '0soundtrack':7 'a':3A 'an':1A 'apple':2A 'bev':10 'by':9 'collection':8 'day':4A 'dr':5B 'series':13 'soundtrack':11 'video':12 'who':6B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['doctor who', 'soundtrack', 'awesome', 'british', 'audiobook']
                                        'tag_date'  2010
                                     'discogstags'  ['house', 'electronic', 'euro house']

============================== file details ==============================
                                           'mtime'  1636921501.3403068  (2021-11-14 21:25:01)
                             'size'  4282327