======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '258'
                                          'artist'  'Ozzy Osbourne'
                                     'text_people'  'Ozzy Osbourne & Jim Vallance'
                                         'release'  'Beavis And Butt-Head Do America'
                                           'title'  'Walk On Water'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['classic rock', 'rock', 'hard rock', 'metal', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '108.124'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Beavis And Butt-Head Do America'
'TBPM' (BPM (beats per minute))                     '108.124'
'TCOM' (Composer)                                   'Ozzy Osbourne & Jim Vallance'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Walk On Water'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ozzy Osbourne'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Geffen'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['classic rock', 'rock', 'hard rock', 'metal', 'heavy metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.23 dB'
'TXXX:replaygain_track_peak'                        '0.521501'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3N43S3005816U188EF95C62587D78A47FC8C97AB5B68715CP6')

========================== row from database ==========================
                                              'id'  773504
                                            'path'  /data/Music/Bulk/0soundtrack/Beavis and Butthead Do America/06 Walk on Water.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  258
                                           'genre'  soundtrack-video
                                        'filesize'  4140166
                                           'mtime'  1620332774
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack and Butthead 06 on soundtrack video
                                      'tag_artist'  Ozzy Osbourne
                                     'tag_release'  Beavis And Butt-Head Do America
                                       'tag_title'  Walk On Water
                                             'bpm'  108.124
                                    'search_title'  'on':2 'walk':1 'water':3
                                   'search_artist'  'osbourne':2 'ozzy':1
                                  'search_release'  'america':7 'and':2 'beavis':1 'butt':3 'butthead':5 'do':6 'head':4
                                     'search_rest'  '0soundtrack':1 'and':2 'butthead':3 'on':4 'soundtrack':5 'video':6
                                    'search_combo'  '0soundtrack':13 'america':12C 'and':7C,14 'beavis':6C 'butt':8C 'butthead':10C,15 'do':11C 'head':9C 'on':2A,16 'osbourne':5B 'ozzy':4B 'soundtrack':17 'video':18 'walk':1A 'water':3A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', 'rock', 'hard rock', 'metal', 'heavy metal']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620332774.411226  (2021-05-06 22:26:14)
                             'size'  4140166