======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '310'
                                          'artist'  ''
                                     'text_people'  ''
                                         'release'  'SUPER EUROBEAT presents ayu-ro mix 2'
                                           'title'  'Surreal (Time A Go-Go Mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jpop'
                                             'bpm'  '104.015'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'SUPER EUROBEAT presents ayu-ro mix 2'
'TBPM' (BPM (beats per minute))                     '104.015'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jpop']
'TIT2' (Title/songname/content description)         'Surreal (Time A Go-Go Mix)'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'various artists'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.70 dB'
'TXXX:replaygain_track_peak'                        '0.379628'

========================== row from database ==========================
                                              'id'  927268
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Various/10 - Surreal (Time A Go-Go Mix).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  310
                                           'genre'  loc-asia-japan;loc-asia-japan-jpop
                                        'filesize'  7452284
                                           'mtime'  1621705478
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Various 10 loc asia japan;loc asia japan jpop
                                      'tag_artist'  Various
                                     'tag_release'  SUPER EUROBEAT presents ayu-ro mix 2
                                       'tag_title'  Surreal (Time A Go-Go Mix)
                                             'bpm'  104.015
                                    'search_title'  'a':4 'go':5,6 'gogo':7 'mix':8,9 'surreal':1 'time':2,3
                                   'search_artist'  'various':1
                                  'search_release'  '2':8 'ayu':4 'ayuro':6 'eurobeat':2 'mix':7 'presents':3 'ro':5 'super':1
                                     'search_rest'  '00asia':1 'asia':4 'japan':5,7,9 'jpop':10 'loc':3,6,8 'various':2
                                    'search_combo'  '00asia':18 '2':17C 'a':4A 'asia':21 'ayu':13C 'ayuro':15C 'eurobeat':11C 'go':5A,6A 'gogo':7A 'japan':22,24,26 'jpop':27 'loc':20,23,25 'mix':8A,9A,16C 'presents':12C 'ro':14C 'super':10C 'surreal':1A 'time':2A,3A 'various':19
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-4', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705477.8507376  (2021-05-22 19:44:37)
                             'size'  7452284