Free Choir Sheet Music – Brethren, We Have Met To Worship Free Choir Sheet Music - Brethren, We Have Met To Worship by George Atkins and William Moore. Key of F, G, Ab, and Bb Major. Enjoy! Brethren, We Have Met To Worship - Ab Major (Popular Key)(pdf) Brethren, We Have Met To Worship - Bb Major (pdf) Brethren, We Have Met To Worship - F Major (pdf) Brethren, We Have Met To Worship - G Major (pdf) Voice Parts (mp3) (not available) Other Resources More Vocal Sheet Music Michael Kravchuk