======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '322'
                                          'artist'  'Nagisa Cosmetic'
                                     'text_people'  ''
                                         'release'  'NAGISA COSMETIC'
                                           'title'  'I am a computer'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['shibuya kei', 'pico pico', 'electronic', 'japanese', 'j pop']"
                                     'discogstags'  "['j-pop', 'electronic', 'synth-pop', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jpop'
                                             'bpm'  '123.935'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'NAGISA COSMETIC'
'TBPM' (BPM (beats per minute))                     '123.935'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jpop']
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'I am a computer'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nagisa Cosmetic'
'TRCK' (Track number/Position in set)               '7'
'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:discogstags'                                  ['j-pop', 'electronic', 'synth-pop', 'pop']
'TXXX:lastfmtags'                                   ['shibuya kei', 'pico pico', 'electronic', 'japanese', 'j pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.24 dB'
'TXXX:replaygain_track_peak'                        '0.481615'

========================== row from database ==========================
                                              'id'  930446
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Unsorted/Nagisa Cosmetic__cifs83f.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  322
                                           'genre'  loc-asia-japan;loc-asia-japan-jpop
                                        'filesize'  7736284
                                           'mtime'  1637330162
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Unsorted Cosmetic__cifs83f loc asia japan;loc asia japan jpop
                                      'tag_artist'  Nagisa Cosmetic
                                     'tag_release'  NAGISA COSMETIC
                                       'tag_title'  I am a computer
                                             'bpm'  123.935
                                    'search_title'  'a':3 'am':2 'computer':4 'i':1
                                   'search_artist'  'cosmetic':2 'nagisa':1
                                  'search_release'  'cosmetic':2 'nagisa':1
                                     'search_rest'  '00asia':1 'asia':6 'cifs83f':4 'cosmetic':3 'japan':7,9,11 'jpop':12 'loc':5,8,10 'unsorted':2
                                    'search_combo'  '00asia':9 'a':3A 'am':2A 'asia':14 'cifs83f':12 'computer':4A 'cosmetic':6B,8C,11 'i':1A 'japan':15,17,19 'jpop':20 'loc':13,16,18 'nagisa':5B,7C 'unsorted':10
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['shibuya kei', 'pico pico', 'electronic', 'japanese', 'j pop']
                                        'tag_date'  2004
                                     'discogstags'  ['j-pop', 'electronic', 'synth-pop', 'pop']

============================== file details ==============================
                                           'mtime'  1637330162.253115  (2021-11-19 14:56:02)
                             'size'  7736284