Taking up the influence of the Soetsu school, the notation does not use the letters Ro, Tsu, Re and Chi, but Hu, Ho, U, Eh, Ya and Ee, which is referred to as the HuHoU system.
宗悦流の流れを汲み、譜にロツレチではなく、フホウエヤイを用いるフホウ譜を用いている。