Is it possible to insert a "break" in a ottava bracket?

[Caagr98]

I currently do it with the code below. It works, but it feels wrong. Is 
there some better way to do it?

```
\ottava 1
c'''4 4 4 4
\ottava 0
\grace s32
\ottava 1
d'''4 4 4 4
\ottava 0
```