Conversation so far:
what happened in 1983 for Anna Vissi?
In May 1983, she married Nikos Karvelas, a composer, with whom she collaborated in 1975
did Anna Vissi and Nikos Karvelas have any children?
in November she gave birth to her daughter Sofia
did Anna Vissi have any other children besides daughter Sofia?
Children 1
what collaborations did Anna Vissi do with Nikos Karvelas?
Since 1975, all her releases have become gold or platinum and have included songs by Karvelas.

Question: what influences does he have in her music?
Self-contained rewrite: what influences does Nikos Karvelas have in Anna Vissi's music?