changing the length (height? positions? endpoints?) of an arpeggio

[Kieren MacMillan]

Hello!

I’m trying to tweak the "length" of an arpeggio (by 1 staff space at the top), 
and can’t seem to find the correct incantation or doc reference.

%%%  MWE begins
\version "2.19.80"
{ <c' e' g'>1\arpeggio }
%%%  MWE ends

Any help would be appreciated.

Thanks,
Kieren.

________________________________

Kieren MacMillan, composer
‣ website: www.kierenmacmillan.info
‣ email: address@hidden