======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '147'
                                          'artist'  'Man or Astro-Man?'
                                     'text_people'  ''
                                         'release'  "UFO's ...and the Men who Fly Them!"
                                           'title'  '9-Volt (Rechargable version)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'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'  '4'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '122.9'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'2\x002\x00+\x009\x006\x00+\x001\x00E\x003\x004\x00+\x004\x007\x009\x004\x00+\x007\x000\x00B\x003\x00+\x008\x004\x00D\x00D\x00+\x00A\x00E\x00C\x00E\x00+\x00D\x00B\x002\x001\x00+\x001\x000\x00C\x003\x003\x00+\x001\x002\x00C\x004\x00C\x00+\x001\x003\x008\x009\x002\x00+\x001\x006\x009\x006\x003\x00+\x001\x009\x003\x00B\x003\x00+\x001\x00C\x006\x005\x00F\x00+\x001\x00D\x00B\x00E\x007\x00+\x001\x00F\x00A\x007\x005\x00+\x002\x002\x001\x008\x002\x00+\x002\x005\x00F\x00A\x005\x00+\x002\x008\x002\x00B\x001\x00+\x002\x009\x002\x00C\x00B\x00+\x002\x00B\x006\x004\x000\x00+\x002\x00C\x00F\x00F\x001\x00+\x002\x00F\x00B\x005\x002\x00+\x003\x001\x009\x001\x008\x00+\x003\x003\x00B\x00F\x005\x00+\x003\x005\x00B\x000\x00F\x00+\x003\x008\x003\x006\x001\x00+\x003\x00A\x00A\x008\x002\x00+\x003\x00D\x009\x00D\x00C\x00+\x004\x000\x008\x009\x00B\x00+\x004\x002\x009\x00C\x007\x00+\x004\x005\x00C\x000\x00F\x00+\x004\x009\x006\x006\x003\x00+\x004\x00B\x006\x005\x00E\x00+\x004\x00E\x002\x006\x006\x00+\x005\x000\x005\x005\x009\x00\x00\x00')
'PRIV:AverageLevel:{\x16\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x16\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')
'PRIV:WM/Provider:U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00'  PRIV(owner='WM/Provider', data=b'U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/WMCollectionID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMCollectionID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/WMContentID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMContentID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     "UFO's ...and the Men who Fly Them!"
'TBPM' (BPM (beats per minute))                     '122.9'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         '9-Volt (Rechargable version)'
'TKEY' (Initial key)                                '2A'
'TLEN' (Length)                                     '148066'
'TMED' (Media type)                                 '7" Vinyl'
'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)                                  'Drug Racer'
'TRCK' (Track number/Position in set)               '1/4'
'TSO2'                                              'Man or Astro-Man?'
'TSOP' (Performer sort order)                       'Man or Astro-Man?'
'TXXX:Artists'                                      'Man or Astro-Man?'
'TXXX:MusicBrainz Album Artist Id'                  '28c5d97f-4321-4ef4-8ac2-d9d93b0eb16c'
'TXXX:MusicBrainz Album Id'                         'e0e849a7-cbac-404f-a18b-3306f05890b4'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'single'
'TXXX:MusicBrainz Artist Id'                        '28c5d97f-4321-4ef4-8ac2-d9d93b0eb16c'
'TXXX:MusicBrainz Release Group Id'                 '5ec76b44-52b2-3cfa-916c-3074913f4666'
'TXXX:MusicBrainz Release Track Id'                 '2b079e73-3d0b-3f80-8490-e3f91ff6c30b'
'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'                                 '1996'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.25 dB'
'TXXX:replaygain_track_peak'                        '0.597687'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'45f85991-5d67-4661-9470-bcb87d76e641')

========================== row from database ==========================
                                              'id'  1531027
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Man or astro man/(1996) UFO_s and the Men Who Fly Them! 7__/01 9 Volt (Rechargable Version).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  147
                                           'genre'  rock-pop-surf
                                        'filesize'  5930192
                                           'mtime'  1620737011
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner astro man (1996) UFO_s Who 7__ 01 Version) rock pop surf
                                      'tag_artist'  Man or Astro-Man?
                                     'tag_release'  UFO's ...and the Men who Fly Them!
                                       'tag_title'  9-Volt (Rechargable version)
                                             'bpm'  122.9
                                    'search_title'  '9':1 '9volt':3 'rechargable':4,5 'version':6,7 'volt':2
                                   'search_artist'  'astro':3 'astroman':5 'man':1,4 'or':2
                                  'search_release'  'and':4,5 'fly':9 'men':7 's':2 'the':6 'them':10 'ufo':1 'ufos':3 'who':8
                                     'search_rest'  '1996':7,8 '7':12 'astro':5 'garage':2 'man':6 'pop':16 'punk':1 'rock':15 's':10 'stoner':4 'surf':3 'ufo':9 'version':13,14 'who':11
                                    'search_combo'  '1996':29,30 '7':34 '9':1A '9volt':3A 'and':16C,17C 'astro':10B,27 'astroman':12B 'fly':21C 'garage':24 'man':8B,11B,28 'men':19C 'or':9B 'pop':38 'punk':23 'rechargable':4A,5A 'rock':37 's':14C,32 'stoner':26 'surf':25 'the':18C 'them':22C 'ufo':13C,31 'ufos':15C 'version':6A,7A,35,36 'volt':2A 'who':20C,33
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'indie', 'majors beloved fm', 'surf rock', 'instrumental', 'rock']
                                        'tag_date'  1996
                                     'discogstags'  ['surf', 'lo-fi', 'indie rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620737010.7793262  (2021-05-11 14:43:30)
                             'size'  5930192