Free Choir Sheet Music – How Firm A Foundation Free Choir Sheet Music - How Firm A Foundation. A Traditional melody by an anonymous composer. Key of F, G, Ab, and Bb Major. Enjoy! How Firm A Foundation - Ab Major (Popular Key)(pdf) How Firm A Foundation - Bb Major (pdf) How Firm A Foundation - F Major (pdf) How Firm A Foundation - G Major (pdf) Voice Parts (mp3) (not available) Other Resources More Vocal Sheet Music Michael Kravchuk