Get ready to feel very emotional with "Missa Brevis (Mass for Saint Peter's): Lord Have Mercy" by Gregg Smith. With a 72 BPM and 4 time signature, the rhythms flow in A♯/B♭ minor. Spanning 3 minutes and 14 seconds, "Missa Brevis (Mass for Saint Peter's): Lord Have Mercy" radiates low energy from start to finish. Let the very emotional vibes of this track carry you away.