Violin Answers

I play the alto sax & my brother plays the violin. He got this interesting music by Taro Hakase, who is a japanese violin player. i can play this music on my pianica, but when i play it on my sax it sounds weird. I want to know how to transpose his violin music to alto sax music.
I realize that is the alto sax & violin are in a different key & that’s what I know is causing the different sounds. i am not stupid. I just want to know how to transpose it

I play the violin but i am composing a piece for my class i need a reference of the notes on the alto clef to the treble clef. so that way i can better compose & harmonize.