Disclaimer: As well as the usual disclaimer, I must note that this is based on "Scarborough Fair," as sung by Paul Simon and Art Garfunkel - though it's really a traditional folk tune.

"Tuckborough Fair," written by Saruman and Glorfindel, sung by Merry

Are you going to Tuckborough Fair?
Athelas, niphredil, mallorn.
Remember me to one who lives there.
Tell him news of Rohan's bright horn.

Tell him that Merry is off to the south.
Athelas, niphredil, mallorn.
No jest nor joke, this is but the truth
Returning now to Rohan the horn.

Tell him to leave to his son all his land
Athelas, niphredil, mallorn.
Between Little Delving and the White Downs,
And come with me to take Rohan's horn.

Tell him we'll ride with the sun on our brows
Athelas, niphredil, mallorn.
Towards the warm south to renew all our vows
And mark our course by blowing that horn.

Are you going to Tuckborough Fair?
Athelas, niphredil, mallorn.
Remember me to one who lives there.
Tell him news of Rohan's bright horn.