A custom poem is written after a conversation about the person, not picked from a ready-made collection. You send a few facts, explain the occasion and the tone, and we return a poem or a piece of prose that doesn't appear in any greeting card book.
What you receive is a Google Docs file: the text itself and, if needed, two or three alternative openings or endings. You can read it aloud, print it on a card, put it into a video greeting or send it as a message. We don't record audio or compose music, but the finished text is easy to hand to a performer or a host who will read it.
People who search for “personalized poem,” “custom poem for birthday” or “personalized greeting” usually want exactly this: words in which the person recognizes themselves. It also answers the search for a birthday message “in my own words”: your words, but put together so that you won't be embarrassed to read them out.