Ava has been guest soloist with many regional California orchestras, including the Solano Symphony, Camellia Symphony, Auburn Symphony, Gold Country Chamber Orchestra, the Sacramento Choral Society Festival Symphony, and the Valley Choral Society Orchestra. Her oratorio work includes Händel's The Messiah and Dixit Dominus, Haydn's Missa in Augustiis, Mozart’s Vesperae Solennes de Dominica, Verdi's "Messa da Requiem" (taped and broadcast on cable television station), Saint-Saen's Oratorio de Noël, and J.S. Bach's Magnificat and B Minor Mass. In December 2007, Ava sang the Magnificat (My Soul doth Magnify the Lord) from Randall Thompson's The Nativity according to St. Luke. In Spring 2009 she will sing Vaughn Williams Dona Nobis Pachem and will give her first ever performance of Mahler's Symphony No. 4.
Her opera experience includes performances of leading roles with several of California's regional opera companies, including Townsend Opera Players, North Bay Opera and the San Francisco Children's Opera. The roles she has performed include Violetta (La Traviata), Cio-cio-san (Madama Butterfly), Aida (Aida), Erste Dame (Die Zauberflote), Georgetta (Il Tabarro), Esmeralda (The Bartered Bride), Cinderella (Cinderella), Polly (The Beggar's Opera), and Josephine (H.M.S. Pinafore).