======================== unified (from filesystem) ========================
                                         'bitrate'  '192.802'
                                        'duration'  '40'
                                          'artist'  'Kuricorder Pops Orchestra'
                                     'text_people'  ''
                                         'release'  'Yotsuba &!'
                                           'title'  "Harahetta Ondo [I'm Hungry Marching Song]"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['fun', 'japanese']"
                                     'discogstags'  "['stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'soundtrack-video;set-pl-mor'
                                             'bpm'  '130.314'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Yotsuba &!'
'TBPM' (BPM (beats per minute))                     '130.314'
'TCON' (Content type, a.k.a. Genre)                 ['soundtrack-video', 'set-pl-mor']
'TIT2' (Title/songname/content description)         "Harahetta Ondo [I'm Hungry Marching Song]"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kuricorder Pops Orchestra'
'TRCK' (Track number/Position in set)               '16'
'TXXX:Mp3gain_minmax'                               '145,255'
'TXXX:Mp3gain_undo'                                 '-001,-001,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'stage & screen'
'TXXX:lastfmtags'                                   ['fun', 'japanese']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.35 dB'
'TXXX:replaygain_track_peak'                        '0.418814'

========================== row from database ==========================
                                              'id'  1506268
                                            'path'  /data/Music/Bulk/0soundtrack/Yotsuba&!_Image_Album/Kuricorder Pops Orchestra - 16 - Harahetta Ondo [I_m Hungry Marching Song].mp3
                                         'working'  None
                                         'bitrate'  193
                                    'duration_sec'  40
                                           'genre'  soundtrack-video;set-pl-mor
                                        'filesize'  972945
                                           'mtime'  1640870287
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Yotsuba&!_Image_Album 16 [I_m soundtrack video;set pl mor
                                      'tag_artist'  Kuricorder Pops Orchestra
                                     'tag_release'  Yotsuba &!
                                       'tag_title'  Harahetta Ondo [I'm Hungry Marching Song]
                                             'bpm'  130.314
                                    'search_title'  'harahetta':1 'hungry':6 'i':3 'im':5 'm':4 'marching':7 'ondo':2 'song':8,9
                                   'search_artist'  'kuricorder':1 'orchestra':3 'pops':2
                                  'search_release'  'yotsuba':1
                                     'search_rest'  '0soundtrack':1 'album':4,7 'i':8,10 'image':3,6 'm':9,11 'mor':18 'pl':17 'set':14,16 'soundtrack':12 'video':13,15 'yotsuba':2,5
                                    'search_combo'  '0soundtrack':14 'album':17,20 'harahetta':1A 'hungry':6A 'i':3A,21,23 'im':5A 'image':16,19 'kuricorder':10B 'm':4A,22,24 'marching':7A 'mor':31 'ondo':2A 'orchestra':12B 'pl':30 'pops':11B 'set':27,29 'song':8A,9A 'soundtrack':25 'video':26,28 'yotsuba':13C,15,18
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['fun', 'japanese']
                                        'tag_date'  
                                     'discogstags'  ['stage & screen']

============================== file details ==============================
                                           'mtime'  1640870287.4665282  (2021-12-30 14:18:07)
                             'size'  972945