Not sure if it's appropriate to ask this here...
I played Ave Maria (Schubert) on soprano sax for a bride last Saturday and made a bit of a hash of it.

Didn't have much time to practise with the pianist so tried it with my daughter on guitar and it went okay. The version we used is written in 6/8. The pianist's version is in common time with some really long bars and some confusion set in.

Is it normally written in 6/8 or 4/4 and does it matter any?