求助几个专业术语的英文

阴韵 Chinese characters ending in sounds other than m ,n ,ng, and b,d,g

阳韵 Chinese characters with m or n or ng as the terminal sound

入声 entering tone,one of the four tones in classical chinese pronunciaton,still retained in certain dialects

八音 Eight categories of musical instrument in ancient orhestra(metal,stone,string,bamboo,gourd,clay,leather,wood)

后两个查不到了，^_^