======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '453'
                                          'artist'  'DoomSword'
                                     'text_people'  ''
                                         'release'  'My Name Will Live On'
                                           'title'  'The Great Horn'
                                           '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-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['epic doom metal', 'viking metal', 'doom metal', 'epic metal', 'heavy metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '9'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic'
                                             'bpm'  '100.8'
                                             'key'  '2A'
                                        'acoustid'  'f72badf6-430d-4774-86fb-04ffdb83b05e'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'9\x00+\x009\x006\x00+\x008\x002\x00C\x00E\x00+\x00E\x00B\x00B\x00F\x00+\x001\x003\x00A\x00D\x008\x00+\x001\x008\x003\x009\x007\x00+\x001\x00F\x00A\x001\x00D\x00+\x002\x005\x007\x00A\x001\x00+\x002\x00A\x00D\x009\x001\x00+\x003\x004\x000\x00C\x005\x00+\x003\x00C\x005\x00D\x001\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'My Name Will Live On'
'TBPM' (BPM (beats per minute))                     '100.8'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-doom or gothic'
'TDOR' (Original release time)                      '2007'
'TDRC' (Recording time)                             '2007-06-22'
'TIT2' (Title/songname/content description)         'The Great Horn'
'TKEY' (Initial key)                                '2A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'DoomSword'
'TPE2' (Band/orchestra/accompaniment)               'DoomSword'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Dragonheart'
'TRCK' (Track number/Position in set)               '9/9'
'TSO2'                                              'DoomSword'
'TSOP' (Performer sort order)                       'DoomSword'
'TXXX:ASIN'                                         'B000R28HKQ'
'TXXX:Acoustid Id'                                  'f72badf6-430d-4774-86fb-04ffdb83b05e'
'TXXX:CATALOGNUMBER'                                'CHAOS 040CD'
'TXXX:MusicBrainz Album Artist Id'                  '779a6b10-0eec-4bcc-8fb7-eb54e9888d23'
'TXXX:MusicBrainz Album Id'                         'fa4d8861-922c-4b0f-9c22-1913efbf5e68'
'TXXX:MusicBrainz Album Release Country'            'IT'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '779a6b10-0eec-4bcc-8fb7-eb54e9888d23'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['epic doom metal', 'viking metal', 'doom metal', 'epic metal', 'heavy metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.63 dB'
'TXXX:replaygain_track_peak'                        '0.371064'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'ffd2387e-9c98-4b26-800f-bbdb6dcabff1')

========================== row from database ==========================
                                              'id'  1392481
                                            'path'  /data/Music/Bulk/00dwimp/00metal/DoomSword - 2007 - My Name Will Live On/09-The Great Horn.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  453
                                           'genre'  eid-metal-doom or gothic
                                        'filesize'  18211994
                                           'mtime'  1620310292
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 2007 09 eid metal doom gothic
                                      'tag_artist'  DoomSword
                                     'tag_release'  My Name Will Live On
                                       'tag_title'  The Great Horn
                                             'bpm'  100.8
                                    'search_title'  'great':2 'horn':3 'the':1
                                   'search_artist'  'doom':2 'doomsword':1 'sword':3
                                  'search_release'  'live':4 'my':1 'name':2 'on':5 'will':3
                                     'search_rest'  '00dwimp':1 '00metal':2 '2007':3 'doom':6 'eid':4 'gothic':7 'metal':5
                                    'search_combo'  '00dwimp':12 '00metal':13 '2007':14 'doom':5B,17 'doomsword':4B 'eid':15 'gothic':18 'great':2A 'horn':3A 'live':10C 'metal':16 'my':7C 'name':8C 'on':11C 'sword':6B 'the':1A 'will':9C
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['epic doom metal', 'viking metal', 'doom metal', 'epic metal', 'heavy metal']
                                        'tag_date'  2007
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310291.904137  (2021-05-06 16:11:31)
                             'size'  18211994