======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '120'
                                          'artist'  '眠るねこ'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'パリピ見習い'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-GRIT-2', 'Q-BUSY-2', 'Q-SYN-2', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'Q-MIXBEAT-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '128.0'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '128.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         'パリピ見習い'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               '眠るねこ'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.39 dB'
'TXXX:replaygain_track_peak'                        '0.456238'

========================== row from database ==========================
                                              'id'  1487063
                                            'path'  /data/Music/Bulk/00poprockelectronic/CFM Copyright Free Music Japan/眠るねこ - パリピ見習い (Nermuru Neko - Parirpi Minarai)_349973857 - CFM Copyright Free Music Japan.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  120
                                           'genre'  electronic-unsorted
                                        'filesize'  1929907
                                           'mtime'  1620568224
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic CFM Copyright Free Music Japan (Nermuru Neko Parirpi Minarai)_349973857 CFM Copyright Free Music Japan electronic unsorted
                                      'tag_artist'  眠るねこ
                                     'tag_release'  None
                                       'tag_title'  パリピ見習い
                                             'bpm'  128.0
                                    'search_title'  'harihi見習i':2 'パリピ見習い':1
                                   'search_artist'  '眠runeko':2 '眠るねこ':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '349973857':12,14 'cfm':2 'copyright':3 'electronic':15 'free':4 'japan':6 'minarai':11,13 'music':5 'neko':9 'nermuru':7,8 'parirpi':10 'unsorted':16
                                    'search_combo'  '00poprockelectronic':5 '349973857':16,18 'cfm':6 'copyright':7 'electronic':19 'free':8 'harihi見習i':2A 'japan':10 'minarai':15,17 'music':9 'neko':13 'nermuru':11,12 'parirpi':14 'unsorted':20 'パリピ見習い':1A '眠runeko':4B '眠るねこ':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'Q-MIXBEAT-3', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'q-piano-1', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620568224.2649548  (2021-05-09 15:50:24)
                             'size'  1929907