I am using lualatex to compile a document (I have to use this compiler due to other packages I need). I am trying to change the font for just the notes. My code so far

```
\usepackage{fontspec}

\text{
\newfontfamily\textnote[1]{{Arial}}
\text{ \textnote{This is a note.} }
}

```

I think Latex can find the font (because it doesnt throw a font not found error. Instead I get: 

```
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
! LaTeX error: "kernel/key-unknown"
! 
! The key 'fontspec-opentype/1' is unknown and is being ignored.
! 
! See the LaTeX3 documentation for further information.
! 
! For immediate help type H <return>.
!...............................................  

```

I have verified that Arial exists as a font (I can find it in Font Book and can use it in word). Does anyone have any ideas about how I could fix this?