Poem
Song, Composing A Poem Or Song
noun
A composed song is a poem, or a song. This can also refer to the act of composing a poem or song, which makes a lot of sense given the kanji.
This is used particularly when referring to waka poetry.
えいか
This is a jukugo word that uses the on'yomi for both kanji. You should be able to read this on your own.
みなさんは、誰がこの詠歌を書いたのが知っていますか？
Everyone, do you know who wrote this poem?
彼は、暗殺される直前に、一つの詠歌をしたためていた。
Just before he was assassinated, he had written a poem.
仏教の教えを和歌の形にして、旋律に乗せて唱えるものを御詠歌といいます。
Chanting Buddhist teachings in the form of a waka poem with a melody is called "goeika".