Article: She has received co-writing credits for most of the songs recorded with Destiny's Child and her solo efforts. Her early songs were personally driven and female-empowerment themed compositions like "Independent Women" and "Survivor", but after the start of her relationship with Jay Z she transitioned to more man-tending anthems such as "Cater 2 U". Beyoncé has also received co-producing credits for most of the records in which she has been involved, especially during her solo efforts. However, she does not formulate beats herself, but typically comes up with melodies and ideas during production, sharing them with producers.

Now answer this question: What part of production does she do?
melodies