is a passionate educator and song-writer who has composed over 100 songs since she first picked up the guitar in 2001. Her creative lyrics and melodies comprise all of Shir Synergy's songs.

is a talented singer and the religious school music director at Washington Hebrew Congregation. It was at a family service at WHC in 2001 that a congregant named Lisa Baydush approached Audrey to share a song she had written called, “Find the Sunshine.” That was the beginning of a new friendship and musical partnership. Sunshine Girls
ever since, the dynamic duo joined forces with Barry Astrow in 2003.

is a computer programming specialist with a flair for harmony and counter-melody arrangement. In the mid '90’s, Barry’s harmonies during a Shabbat service caught the attention of cantorial soloist Audrey Katz, which led to a partnership, with the duo singing together at congregational events. In 2003, Audrey introduced her friend Barry to her friend Lisa... and the rest, as they say, is synergistic history!