I was raised by loving, secular Jewish parents in a neighborhood with not too many Jewish neighbors. It wasn’t until my children were young that I began to discover Judaism. I found that Judaism, especially Reform Judaism, was a great fit for what I believed (which is what I have since heard from many Jews-by-choice).
The one thing that I could relate to from the beginning was the melodies; they seemed to invite me to join in. Long before I had the courage to learn to read Hebrew or take Introduction to Judaism, I could sing along with the congregation.