======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '220'
                                          'artist'  '青江三奈'
                                     'text_people'  ''
                                         'release'  'Nobody But You'
                                           'title'  'Nagasako Blues'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'q-syn-1', 'q-bass-4', "
 "'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', 'q-drums-1', 'q-other-3', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['japanese', 'female vocalists', '50s-80s kayoukyoku-enka', 'j-pop', 'enka']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '128.3'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:{\x0c\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x0c\x00\x00')
'PRIV:PeakValue:!W\x00\x00'                         PRIV(owner='PeakValue', data=b'!W\x00\x00')
'TALB' (Album/Movie/Show title)                     'Nobody But You'
'TBPM' (BPM (beats per minute))                     '128.3'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '2013'
'TIT2' (Title/songname/content description)         'Nagasako Blues'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tristes Humanistes'
'TPE2' (Band/orchestra/accompaniment)               '青江三奈'
'TPUB' (Publisher)                                  'ビクター'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['japanese', 'female vocalists', '50s-80s kayoukyoku-enka', 'j-pop', 'enka']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.22 dB'
'TXXX:replaygain_track_peak'                        '0.480034'

========================== row from database ==========================
                                              'id'  473160
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/va - Nobody But You [Tristes Humanistes]/09 - Aoe Mina - Nagasaki Blues.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  220
                                           'genre'  loc-unsorted
                                        'filesize'  5499126
                                           'mtime'  1637933129
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm va [Tristes Humanistes] 09 Aoe Mina Nagasaki loc unsorted
                                      'tag_artist'  青江三奈
                                     'tag_release'  Nobody But You
                                       'tag_title'  Nagasako Blues
                                             'bpm'  128.3
                                    'search_title'  'blues':2 'nagasako':1
                                   'search_artist'  '青江三奈':1
                                  'search_release'  'but':2 'nobody':1 'you':3
                                     'search_rest'  'aoe':6 'humanistes':4,5 'loc':9 'mina':7 'nagasaki':8 'tristes':2,3 'unsorted':10 'va':1
                                    'search_combo'  'aoe':12 'blues':2A 'but':5C 'humanistes':10,11 'loc':15 'mina':13 'nagasaki':14 'nagasako':1A 'nobody':4C 'tristes':8,9 'unsorted':16 'va':7 'you':6C '青江三奈':3B
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['japanese', 'female vocalists', '50s-80s kayoukyoku-enka', 'j-pop', 'enka']
                                        'tag_date'  2013
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637933129.1096969  (2021-11-26 14:25:29)
                             'size'  5499126