Calvar holds degrees from the University of South Carolina, Georgia State University, and East Carolina University. He performs frequently as a baritone both as a soloist and as a chorister. Recent highlights include singing for high Mass at the Vatican, the Society for New Music, and Blessed Sacrament Church in Hollywood, California. A frequent guest conductor, clinician, and adjudicator, Calvar has worked most recently at Music Educators Associations in New York, Pennsylvania, and North Carolina and at high schools, colleges, churches, and civic organizations nationwide. He has performed as a percussionist before the American Bandmasters Association, as a member of Central Winds, and as a soloist for the Charlotte Symphony. He has collaborated in jazz recordings as a vocalist, percussionist, and pianist.