Complex sentence: Frank did a clinic at the First Annual West Chester University Trumpet Fest on the Fundamentals of Trumpet Playing and also participated in the Claude Gordon International Brass Workshops from 1984 until the final one in 1993.
Split into simpler sentences: Frank did a clinic at the First Annual West Chester University Trumpet Fest on the Fundamentals of Trumpet Playing. Frank also participated in the Claude Gordon International Brass Workshops from 1984 until the final one in 1993.