Vocabulary consisting only from characters you are able to read
調整
chousei
regulation, coordination, adjustment, tuning, modification, alterationsuru
億
oku
(num) 100,000,000, hundred millionjlpt4
にも関らず
nimokakawarazu
in spite of, neverthelessmix
愛器
aiki
favourite musical instrument, utensil, etc.ongaku