Two eighth notes.

In Orff music, the quarter note is called TA and the eighth note is called TI.

ti is an eighth note and ta is a quarter note. In the Orff teaching method, quarter notes are pronounced ta and eighth notes are pronounced ti. The biggest feature of Orff's teaching method is that it focuses on the development of children's inner world. In this kind of learning, children will not regard learning music as a burden or utility, but will devote themselves wholeheartedly to the world of music.