GSA provides pre-professional, individualized and focused instructional programs in dance, instrumental and vocal music, musical theatre, theatre: and visual arts for students with a high degree of innate artistic talent and potential for growth. Students are committed to developing their talent and are considering or planning careers in the arts.

Students take academic classes at their regular high schools in the morning and attend GSA in the afternoon for three hours daily during the regular academic year. Transportation to and from GSA is provided by the student's school division. Classes may be individual lessons, small or large groups or rehearsals. The average class size is 12. Students may earn three credits for each year they attend GSA.