After working for Muzak he was hired as a staff composer by RCA. He also recorded a number of albums for RCA, many appearing on their low-budget "Vik" label. One highlight of Bass' work was his orchestration of Gale Garnett's 1964 hit album "My Kind Of Folk Songs". Working alongside producer Andy Wiswell, Bass' efforts also yielded Gale's top 5 hit "We'll Sing In The Sunshine" (which she also wrote) that same year.
In 1962 Bass also received arranging credits for the first two Four Seasons' hits "Sherry" and "Big Girls Don't Cry" as well as their Christmas lp "Seasons Greetings".