======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '115'
                                          'artist'  'Man or Astro-Man?'
                                     'text_people'  ''
                                         'release'  'What Remains Inside a Black Hole'
                                           'title'  "The Universe's Only Intergalactic Radioactive Breakfast Bar"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'indie', 'majors beloved fm', 'surf rock', 'instrumental', 'rock']"
                                     'discogstags'  "['surf', 'lo-fi', 'indie rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '15'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '112.321'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:{\x15\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x15\x00\x00')
'PRIV:PeakValue:!~\x00\x00'                         PRIV(owner='PeakValue', data=b'!~\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'What Remains Inside a Black Hole'
'TBPM' (BPM (beats per minute))                     '112.321'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDOR' (Original release time)                      '1995'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         "The Universe's Only Intergalactic Radioactive Breakfast Bar"
'TKEY' (Initial key)                                '12B'
'TLEN' (Length)                                     '0'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Man or Astro-Man?'
'TPE2' (Band/orchestra/accompaniment)               'Man or Astro-Man?'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Au Go Go'
'TRCK' (Track number/Position in set)               '1/15'
'TSO2'                                              'Man or Astro-Man?'
'TSOP' (Performer sort order)                       'Man or Astro-Man?'
'TXXX:ASIN'                                         'B0000015D7'
'TXXX:Artists'                                      'Man or Astro-Man?'
'TXXX:BARCODE'                                      '5021456065905'
'TXXX:CATALOGNUMBER'                                'ANDA 191'
'TXXX:MusicBrainz Album Artist Id'                  '28c5d97f-4321-4ef4-8ac2-d9d93b0eb16c'
'TXXX:MusicBrainz Album Id'                         '9ab83a83-4e4f-45a3-b726-1545435a74f2'
'TXXX:MusicBrainz Album Release Country'            'AU'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '28c5d97f-4321-4ef4-8ac2-d9d93b0eb16c'
'TXXX:MusicBrainz Release Group Id'                 'c7543472-80bf-3111-8152-6efcf74f0118'
'TXXX:MusicBrainz Release Track Id'                 '8e54de54-2355-33b5-be07-906c7e40d310'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['surf', 'lo-fi', 'indie rock', 'rock']
'TXXX:lastfmtags'                                   ['surf', 'indie', 'majors beloved fm', 'surf rock', 'instrumental', 'rock']
'TXXX:originalyear'                                 '1995'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'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'                        '+0.50 dB'
'TXXX:replaygain_track_peak'                        '0.586594'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a9906b5e-15fa-4678-b9db-85b2e6c5a1ba')

========================== row from database ==========================
                                              'id'  1501405
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Man or astro man/(1996) What Remains Inside A Black Hole/01 The Universe_s Only Intergalactic Radioactive Breakfast Bar.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  115
                                           'genre'  rock-pop-surf
                                        'filesize'  4661884
                                           'mtime'  1620737012
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner astro man (1996) 01 Universe_s rock pop surf
                                      'tag_artist'  Man or Astro-Man?
                                     'tag_release'  What Remains Inside a Black Hole
                                       'tag_title'  The Universe's Only Intergalactic Radioactive Breakfast Bar
                                             'bpm'  112.321
                                    'search_title'  'bar':9 'breakfast':8 'intergalactic':6 'only':5 'radioactive':7 's':3 'the':1 'universe':2 'universes':4
                                   'search_artist'  'astro':3 'astroman':5 'man':1,4 'or':2
                                  'search_release'  'a':4 'black':5 'hole':6 'inside':3 'remains':2 'what':1
                                     'search_rest'  '1996':7,8 'astro':5 'garage':2 'man':6 'pop':12 'punk':1 'rock':11 's':10 'stoner':4 'surf':3 'universe':9
                                    'search_combo'  '1996':27,28 'a':18C 'astro':12B,25 'astroman':14B 'bar':9A 'black':19C 'breakfast':8A 'garage':22 'hole':20C 'inside':17C 'intergalactic':6A 'man':10B,13B,26 'only':5A 'or':11B 'pop':32 'punk':21 'radioactive':7A 'remains':16C 'rock':31 's':3A,30 'stoner':24 'surf':23 'the':1A 'universe':2A,29 'universes':4A 'what':15C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'indie', 'majors beloved fm', 'surf rock', 'instrumental', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  ['surf', 'lo-fi', 'indie rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620737011.5050387  (2021-05-11 14:43:31)
                             'size'  4661884