Is there such a term "musical arches" ?

[Khun Ying Pojaman]

I'm reading an examiner's report from the ABRSM. It says: "there are musical arches along the way."

I couldn't quite make up the word 'arches' because the handwriting was almost illegible.

Can anyone explain what is "musical arches" ?

 

[chupacabra]

Ups and downs. Maybe. I only know the golden arches.