The term 'One-Named New Ager' refers to two popular musicians, Yanni (5 letters) and Enya (4 letters). Yanni is a Greek composer, keyboardist, and pianist who has released several albums of instrumental music. Enya is an Irish singer, songwriter, and musician who has released several albums of new age and Celtic music. Both Yanni and Enya have achieved international success and are well-known for their unique sound.