======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '234'
                                          'artist'  'Hirokazu Ando'
                                     'text_people'  'Taro Bando'
                                         'release'  'Super Smash Brothers: Melee'
                                           'title'  'F-Zero Grand Prix: Big Blue'
                                           'quals'  ("['Q-UNU-1', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'Q-JZFKS-1', 'Q-OLDST-2', 'q-chart-1', 'q-drums-4', 'q-other-3', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['composer', 'japanese', 'instrumental', 'video game music']"
                                     'discogstags'  "['soundtrack', 'stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '111.333'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Super Smash Brothers: Melee'
'TBPM' (BPM (beats per minute))                     '111.333'
'TCOM' (Composer)                                   'Taro Bando'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-series'
'TCOP' (Copyright message)                          '(c) 1990-2001 HAL Laboratory, Inc./Nintendo Co., Ltd.'
'TDRC' (Recording time)                             '2001'
'TENC' (Encoded by)                                 'Pipian'
'TIT2' (Title/songname/content description)         'F-Zero Grand Prix: Big Blue'
'TKEY' (Initial key)                                '10A'
'TOPE' (Original artist(s)/performer(s))            'Taro Bando'
'TPE1' (Lead performer(s)/Soloist(s))               'Hirokazu Ando'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['soundtrack', 'stage & screen']
'TXXX:lastfmtags'                                   ['composer', 'japanese', 'instrumental', 'video game music']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.12 dB'
'TXXX:replaygain_track_peak'                        '0.623700'

========================== row from database ==========================
                                              'id'  851256
                                            'path'  /data/Music/Bulk/0soundtrack/[tv tunes]/13-F-Zero Grand Prix-Big Blue.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  234
                                           'genre'  soundtrack-video-series
                                        'filesize'  3751808
                                           'mtime'  1620329249
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack [tv tunes] 13 soundtrack video series
                                      'tag_artist'  Hirokazu Ando
                                     'tag_release'  Super Smash Brothers: Melee
                                       'tag_title'  F-Zero Grand Prix: Big Blue
                                             'bpm'  111.333
                                    'search_title'  'big':7 'blue':8 'f':1 'fzero':3 'grand':4 'prix':5,6 'zero':2
                                   'search_artist'  'ando':2 'hirokazu':1
                                  'search_release'  'brothers':3,4 'melee':5 'smash':2 'super':1
                                     'search_rest'  '0soundtrack':1 'series':8 'soundtrack':6 'tunes':4,5 'tv':2,3 'video':7
                                    'search_combo'  '0soundtrack':16 'ando':10B 'big':7A 'blue':8A 'brothers':13C,14C 'f':1A 'fzero':3A 'grand':4A 'hirokazu':9B 'melee':15C 'prix':5A,6A 'series':23 'smash':12C 'soundtrack':21 'super':11C 'tunes':19,20 'tv':17,18 'video':22 'zero':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['composer', 'japanese', 'instrumental', 'video game music']
                                        'tag_date'  2001
                                     'discogstags'  ['soundtrack', 'stage & screen']

============================== file details ==============================
                                           'mtime'  1620329249.300956  (2021-05-06 21:27:29)
                             'size'  3751808