How do you say had a violin lesson in French?

There are a few ways to say "had a violin lesson" in French, depending on the context and level of formality:

Formal:

* J'ai suivi un cours de violon. (I followed a violin lesson.)

* J'ai eu un cours de violon. (I had a violin lesson.)

Informal:

* J'ai fait un cours de violon. (I did a violin lesson.)

* J'ai pris un cours de violon. (I took a violin lesson.)

You could also use the verb "apprendre" (to learn) to emphasize the learning aspect:

* J'ai appris le violon. (I learned violin.)

The best option will depend on the context and your personal preference.