The song "Vesuvius" by Frank Ticheli is in A minor, specifically A Phrygian due to its use of the note B♭. Above is a recreation of the poster of the song, modified to feature its key.

"Womanly, Graceful in character. Capable of soothing."

A minor is the relative minor of C major, with both having no flats or sharps. It is one of the more common minor keys, even in band ensembles where C major is less popular due to its intonation (C is the 3rd and G the 7th, notes less important to play in-tune than the root and 5th). A minor is also the subject of riducule among many, with even Kendrick Lamar making reference to this in his song "Not Like Us," which was actually in B minor.