Brass Quartet - Digital Download SKU: IZ.CMS193 Composed by Gary Gazlay. Score and Parts. 11 pages. Imagine Music - Digital #CMS193. Published by Imagine Music - Digital (IZ.CMS193). 9 x 12 inches.The composition Cantus was written for brass quartet. The title is Latin for “song and is dedicated to my wife and best friend, Betty. Cantuswas inspired by Psalm 40:3.It is my hope that Cantus will provide musicians with a song that they will enjoy learning to play, and provide other music educators with a teaching tool that can be used to motivate and encourage their students.