======================== unified (from filesystem) ========================
                                         'bitrate'  '305.031'
                                        'duration'  '273'
                                          'artist'  'DevilDriver'
                                     'text_people'  ''
                                         'release'  'Pray for Villains'
                                           'title'  'Forgiveness is a Six Gun'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['groove metal', 'death metal', 'metal', 'thrash metal', 'metalcore', "
 "'melodic death metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '13'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '114.934'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Pray for Villains'
'TBPM' (BPM (beats per minute))                     '114.934'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TIT2' (Title/songname/content description)         'Forgiveness is a Six Gun'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '273613'
'TPE1' (Lead performer(s)/Soloist(s))               'DevilDriver'
'TPE2' (Band/orchestra/accompaniment)               'DevilDriver'
'TRCK' (Track number/Position in set)               '7/13'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98.2 (http://www.mp3dev.org/)'
'TXXX:DATE'                                         '2009'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['groove metal',
 'death metal',
 'metal',
 'thrash metal',
 'metalcore',
 'melodic death metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.43 dB'
'TXXX:replaygain_track_peak'                        '0.377457'

========================== row from database ==========================
                                              'id'  1394696
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Devildriver/07 Devil Driver - Forgiveness is a Six Gun.mp3
                                         'working'  None
                                         'bitrate'  305
                                    'duration_sec'  273
                                           'genre'  eid-metal-death
                                        'filesize'  10456960
                                           'mtime'  1620301928
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Devildriver 07 eid metal death
                                      'tag_artist'  DevilDriver
                                     'tag_release'  Pray for Villains
                                       'tag_title'  Forgiveness is a Six Gun
                                             'bpm'  114.934
                                    'search_title'  'a':3 'forgiveness':1 'gun':5 'is':2 'six':4
                                   'search_artist'  'devil':2 'devildriver':1 'driver':3
                                  'search_release'  'for':2 'pray':1 'villains':3
                                     'search_rest'  '00dwimp':1 '00metal':2 'death':6 'devildriver':3 'eid':4 'metal':5
                                    'search_combo'  '00dwimp':12 '00metal':13 'a':3A 'death':17 'devil':7B 'devildriver':6B,14 'driver':8B 'eid':15 'for':10C 'forgiveness':1A 'gun':5A 'is':2A 'metal':16 'pray':9C 'six':4A 'villains':11C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['groove metal', 'death metal', 'metal', 'thrash metal', 'metalcore', 'melodic death metal']
                                        'tag_date'  2009
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620301927.7889524  (2021-05-06 13:52:07)
                             'size'  10456960