======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '170'
                                          'artist'  'POLYSICS'
                                     'text_people'  ''
                                         'release'  'Polysics or Die!!!!'
                                           'title'  'For Young Electric Pop'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', '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-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['new wave', 'rock', 'electronic', 'japanese', 'j rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '18'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  ('loc-asia-japan;rock-gr-punk-jpunk;electronic-we-synthpunk;loc-asia-japan-jrock;electronic-we-new '
 'wave or post punk')
                                             'bpm'  '101.107'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00002024 00001C34 00006393'
'COMM:iTunNORM:eng'                                 (' 00002024 00001C34 00006393 00006C4D 000186B7 000186B7 00008000 00008000 '
 '00004E37 00004E4E')
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x002\x00+\x009\x006\x00+\x002\x00C\x002\x00D\x00+\x005\x003\x000\x000\x00+\x008\x001\x007\x004\x00+\x00B\x005\x00D\x002\x00+\x00F\x000\x004\x00E\x00+\x001\x003\x008\x006\x000\x00+\x001\x007\x001\x00E\x003\x00+\x001\x00B\x005\x00A\x006\x00+\x001\x00E\x009\x001\x009\x00+\x002\x002\x003\x00E\x007\x00+\x002\x005\x005\x00F\x004\x00+\x002\x008\x00E\x002\x00B\x00+\x002\x00B\x00F\x00D\x009\x00+\x002\x00F\x007\x008\x00D\x00+\x003\x004\x000\x00C\x00B\x00+\x003\x008\x006\x002\x001\x00+\x003\x00C\x004\x00C\x007\x00+\x003\x00D\x004\x002\x003\x00\x00\x00')
'PRIV:AverageLevel:\x89-\x00\x00'                   PRIV(owner='AverageLevel', data=b'\x89-\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\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:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x007\x003\x001\x002\x008\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x007\x007\x000\x004\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x006\x000\x000\x006\x005\x006\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x007\x003\x001\x002\x008\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x007\x007\x000\x004\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x006\x000\x000\x006\x005\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x0e{ýú\x9e¹U@\x83¡®\x93\x1c\x96®J'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x0e{\xfd\xfa\x9e\xb9U@\x83\xa1\xae\x93\x1c\x96\xaeJ')
'PRIV:WM/WMCollectionID:\x0e{ýú\x9e¹U@\x83¡®\x93\x1c\x96®J'  PRIV(owner='WM/WMCollectionID', data=b'\x0e{\xfd\xfa\x9e\xb9U@\x83\xa1\xae\x93\x1c\x96\xaeJ')
'PRIV:WM/WMContentID:ð\x90\x1eÍ\x07ug@\x9b¸b\x12 ç6%'  PRIV(owner='WM/WMContentID', data=b'\xf0\x90\x1e\xcd\x07ug@\x9b\xb8b\x12 \xe76%')
'TALB' (Album/Movie/Show title)                     'Polysics or Die!!!!'
'TBPM' (BPM (beats per minute))                     '101.107'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan',
 'rock-gr-punk-jpunk',
 'electronic-we-synthpunk',
 'loc-asia-japan-jrock',
 'electronic-we-new wave or post punk']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'For Young Electric Pop'
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '170840'
'TPE1' (Lead performer(s)/Soloist(s))               'POLYSICS'
'TPE2' (Band/orchestra/accompaniment)               'POLYSICS'
'TPUB' (Publisher)                                  'Tofu'
'TRCK' (Track number/Position in set)               '11/18'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['new wave', 'rock', 'electronic', 'japanese', 'j rock']
'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'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.05 dB'
'TXXX:replaygain_track_peak'                        '0.322922'

========================== row from database ==========================
                                              'id'  935572
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/POLYSICS/[2004] Polysics or Die!!!!/11 For Young Electric Pop.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  170
                                           'genre'  loc-asia-japan;rock-gr-punk-jpunk;electronic-we-synthpunk;loc-asia-japan-jrock;electronic-we-new wave or post punk
                                        'filesize'  6840744
                                           'mtime'  1620531051
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia [2004] 11 loc asia japan;rock gr punk jpunk;electronic we synthpunk;loc asia japan jrock;electronic we new wave post punk
                                      'tag_artist'  POLYSICS
                                     'tag_release'  Polysics or Die!!!!
                                       'tag_title'  For Young Electric Pop
                                             'bpm'  101.107
                                    'search_title'  'electric':3 'for':1 'pop':4 'young':2
                                   'search_artist'  'polysics':1
                                  'search_release'  'die':3 'or':2 'polysics':1
                                     'search_rest'  '00asia':1 '2004':2,3 'asia':5 'electronic':13,15,23,25 'gr':10 'japan':6,8,21 'jpunk':12,14 'jrock':22,24 'loc':4,18,20 'new':26 'post':28 'punk':11 'rock':7,9 'synthpunk':17,19 'wave':27 'we':16
                                    'search_combo'  '00asia':9 '2004':10,11 'asia':13 'die':8C 'electric':3A 'electronic':21,23,31,33 'for':1A 'gr':18 'japan':14,16,29 'jpunk':20,22 'jrock':30,32 'loc':12,26,28 'new':34 'or':7C 'polysics':5B,6C 'pop':4A 'post':36 'punk':19 'rock':15,17 'synthpunk':25,27 'wave':35 'we':24 'young':2A
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', '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-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['new wave', 'rock', 'electronic', 'japanese', 'j rock']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620531051.3357556  (2021-05-09 05:30:51)
                             'size'  6840744