======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '227'
                                          'artist'  'Sorcery'
                                     'text_people'  ''
                                         'release'  'Sinister Soldiers'
                                           'title'  'Aracnid (The Dark Thing)'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  ("['swedish', 'hard rock', 'death metal', 'old school death metal', 'sweden', "
 "'swedish death metal']")
                                     'discogstags'  "['death metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '9'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '145.2'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:Songs-DB_Custom2:XXX'                         'USA'
'TALB' (Album/Movie/Show title)                     'Sinister Soldiers'
'TBPM' (BPM (beats per minute))                     '145.2'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'Aracnid (The Dark Thing)'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Sorcery'
'TPE2' (Band/orchestra/accompaniment)               'Sorcery'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Dodo Records'
'TRCK' (Track number/Position in set)               '1/9'
'TSO2'                                              'Sorcery'
'TSOP' (Performer sort order)                       'Sorcery'
'TXXX:Artists'                                      'Sorcery'
'TXXX:BARCODE'                                      '8026575512726'
'TXXX:CATALOGNUMBER'                                'DDR 512'
'TXXX:MusicBrainz Album Artist Id'                  '339a3055-5da7-4e9a-b700-0f15eb71819f'
'TXXX:MusicBrainz Album Id'                         '871a03be-f571-41e1-b848-812dc80ffc2d'
'TXXX:MusicBrainz Album Release Country'            'IT'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '339a3055-5da7-4e9a-b700-0f15eb71819f'
'TXXX:MusicBrainz Release Group Id'                 '0ddc2f13-4715-3cac-82e7-80c5dbb99393'
'TXXX:MusicBrainz Release Track Id'                 '0742de8f-d4a1-4073-9e98-c53068b1220b'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['death metal', 'rock']
'TXXX:lastfmtags'                                   ['swedish',
 'hard rock',
 'death metal',
 'old school death metal',
 'sweden',
 'swedish death metal']
'TXXX:originalyear'                                 '1998'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.04 dB'
'TXXX:replaygain_track_peak'                        '0.993086'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'16393072-93a4-48f0-af64-c1793cb0bd70')

========================== row from database ==========================
                                              'id'  1478362
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/SORCERY [USA] - 1978 - Sinister Soldiers/01 - Aracnid (The Dark King).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  227
                                           'genre'  rock-cppex
                                        'filesize'  9186348
                                           'mtime'  1621508838
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy SORCERY [USA] 1978 01 King) rock cppex
                                      'tag_artist'  Sorcery
                                     'tag_release'  Sinister Soldiers
                                       'tag_title'  Aracnid (The Dark Thing)
                                             'bpm'  145.2
                                    'search_title'  'aracnid':1 'dark':4 'the':2,3 'thing':5,6
                                   'search_artist'  'sorcery':1
                                  'search_release'  'sinister':1 'soldiers':2
                                     'search_rest'  '1978':5 'classicprogpsy':1 'cppex':9 'king':6,7 'rock':8 'sorcery':2 'usa':3,4
                                    'search_combo'  '1978':14 'aracnid':1A 'classicprogpsy':10 'cppex':18 'dark':4A 'king':15,16 'rock':17 'sinister':8C 'soldiers':9C 'sorcery':7B,11 'the':2A,3A 'thing':5A,6A 'usa':12,13
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-1', 'q-drums-4', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['swedish', 'hard rock', 'death metal', 'old school death metal', 'sweden', 'swedish death metal']
                                        'tag_date'  2011
                                     'discogstags'  ['death metal', 'rock']

============================== file details ==============================
                                           'mtime'  1621508838.019364  (2021-05-20 13:07:18)
                             'size'  9186348