======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '285'
                                          'artist'  '3818919/w'
                                     'text_people'  ''
                                         'release'  'Nachos Supreme EP'
                                           'title'  'Nachos Supreme'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['idm', 'ambient', 'electronic', 'instrumental', 'beautiful']"
                                     'discogstags'  "['idm', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '4'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-beats'
                                             'bpm'  '104.122'
                                             'key'  '6A'
                                        'acoustid'  '8b5cb7b7-9913-484f-993a-dbb12aac3cd4'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Nachos Supreme EP'
'TBPM' (BPM (beats per minute))                     '104.122'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-beats'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999-08-15'
'TIT2' (Title/songname/content description)         'Nachos Supreme'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               '3818919/w'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Monotonik'
'TRCK' (Track number/Position in set)               '1/4'
'TSO2'                                              '3818919/w'
'TSOP' (Performer sort order)                       '3818919/w'
'TXXX:Acoustid Id'                                  '8b5cb7b7-9913-484f-993a-dbb12aac3cd4'
'TXXX:Artists'                                      '3818919/w'
'TXXX:CATALOGNUMBER'                                'mtk.mp3.008'
'TXXX:MusicBrainz Album Artist Id'                  'f14af1a9-82f1-481a-a482-e441acd632dd'
'TXXX:MusicBrainz Album Id'                         '1457725b-b924-49a0-a77c-e626c9868c93'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'ep'
'TXXX:MusicBrainz Artist Id'                        'f14af1a9-82f1-481a-a482-e441acd632dd'
'TXXX:MusicBrainz Release Group Id'                 '14f532aa-ba7d-3c62-8f68-6ba9fe4c5442'
'TXXX:MusicBrainz Release Track Id'                 '1b3249d0-eda9-3110-88fa-1863a0504874'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['idm', 'electronic']
'TXXX:lastfmtags'                                   ['idm', 'ambient', 'electronic', 'instrumental', 'beautiful']
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.46 dB'
'TXXX:replaygain_track_peak'                        '0.944937'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8eef2ebf-8172-4c4a-9a6d-cb8f96569a7e')
'WCOP' (Copyright/Legal information)                WCOP(url='https://creativecommons.org/licenses/by-nd-nc/1.0/')

========================== row from database ==========================
                                              'id'  166187
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/monotonik/monotonik-archives-vol-1/[mtk008]-3818919w-01-nachos-supreme.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  285
                                           'genre'  electronic-generic or radio-beats
                                        'filesize'  4597200
                                           'mtime'  1620543537
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm monotonik monotonik archives vol [mtk008] 3818919w 01 nachos supreme electronic generic or radio beats
                                      'tag_artist'  3818919/w
                                     'tag_release'  Nachos Supreme EP
                                       'tag_title'  Nachos Supreme
                                             'bpm'  104.122
                                    'search_title'  'nachos':1 'supreme':2
                                   'search_artist'  '3818919':1 '3818919w':3 'w':2
                                  'search_release'  'ep':3 'nachos':1 'supreme':2
                                     'search_rest'  '3818919w':6 'archives':2 'beats':13 'electronic':9 'generic':10 'monotonik':1 'mtk008':4,5 'nachos':7 'or':11 'radio':12 'supreme':8 'vol':3
                                    'search_combo'  '3818919':3B '3818919w':5B,14 'archives':10 'beats':21 'electronic':17 'ep':8C 'generic':18 'monotonik':9 'mtk008':12,13 'nachos':1A,6C,15 'or':19 'radio':20 'supreme':2A,7C,16 'vol':11 'w':4B
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['idm', 'ambient', 'electronic', 'instrumental', 'beautiful']
                                        'tag_date'  1999
                                     'discogstags'  ['idm', 'electronic']

============================== file details ==============================
                                           'mtime'  1620543536.8815193  (2021-05-09 08:58:56)
                             'size'  4597200