Can a non-poet write a decent haiku?

I've never written a poem. I enjoy poetry, especially short-ish, wry ones. I'm pre-planning my funeral arrangements, and the company from whom I am buying the gravestone can add a image to the stone and/or a few words beyond just the name, birthdate, deathdate. I'm an amateur cellist and singer, and I considered having an image of a cello, but the available images are limited. So, why not a haiku, expressing my love of music. So here's my haiku.

cello sings love song
choir's ancient voices quiver
God harmonizes

(I count choir's as a single syllable.)
Please comment and critque.