KANJI GUIDE
Sound, including music. 音楽 is music; 発音 is pronunciation.
Cherry blossom. Japan’s flower, and the standard image for something beautiful that does not last.
Half of 瑠璃, the deep blue stone. On its own it is used mostly for its sound and its colour.
Vermilion — the orange-red of shrine gates and old seals. 朱肉 is the ink for a personal seal.