Just experimenting with a 5-metre metric verse (have not yet come up with an appropriate name for it). The metre is roughly

―˘˘ | ― ˘˘ | ― || ― ˘˘ | ― ˘

The last one would most frequently be a closed syllable.

Now a little five-liner:

Morn i galad bo Amar, Thû si aderias
Asgar a gellui i ross, brui rîb i hirion
Tínen a gwathren i daur, thern elenyr bain
Neithan i aglar e-ndôr, eglan *enedh nín
Gwathratha bân guruthos, naergon uluithiad.

Dark is the light on Arda, Sauron has yet again arisen
Fierce and triumphant is the rain, the river flows loudly,
The forest is silent and murky, all elanors have withered
The glory of the land has been deprived, my heart is forsaken
Terror of death will cover all, and unquenchable sorrow.