======================== unified (from filesystem) ========================
                                         'bitrate'  '133.2'
                                        'duration'  '190'
                                          'artist'  'Epik High'
                                     'text_people'  ''
                                         'release'  'Dimitri - Intrumental'
                                           'title'  'Exile (Halftime)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-3', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['korean', 'hip-hop', 'k-pop', 'hip hop', 'kpop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '90.2'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Intrumental'
'TBPM' (BPM (beats per minute))                     '90.2'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TIT2' (Title/songname/content description)         'Exile (Halftime)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Epik High'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['korean', 'hip-hop', 'k-pop', 'hip hop', 'kpop']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.43 dB'
'TXXX:replaygain_track_peak'                        '0.447996'
'TXXX:youtube'                                      'u3UMOK7ANHo'

========================== row from database ==========================
                                              'id'  1477701
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/Instrumental/Epik High - Exile (Halftime)-u3UMOK7ANHo.mp3
                                         'working'  None
                                         'bitrate'  133
                                    'duration_sec'  190
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  3169677
                                           'mtime'  1620526708
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Instrumental u3UMOK7ANHo hip hop or rnb or rap or turntablism
                                      'tag_artist'  Epik High
                                     'tag_release'  Dimitri - Intrumental
                                       'tag_title'  Exile (Halftime)
                                             'bpm'  90.2
                                    'search_title'  'exile':1 'halftime':2,3
                                   'search_artist'  'epik':1 'high':2
                                  'search_release'  'dimitri':1 'intrumental':2
                                     'search_rest'  'hip':3 'hop':4 'instrumental':1 'or':5 'rap':7 'rnb':6 'turntablism':8 'u3umok7anho':2
                                    'search_combo'  'dimitri':6C 'epik':4B 'exile':1A 'halftime':2A,3A 'high':5B 'hip':10 'hop':11 'instrumental':8 'intrumental':7C 'or':12 'rap':14 'rnb':13 'turntablism':15 'u3umok7anho':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['korean', 'hip-hop', 'k-pop', 'hip hop', 'kpop']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526707.9134529  (2021-05-09 04:18:27)
                             'size'  3169677