I’m an old timer who hasn’t posted here in a while. My kid has both bachelors and masters degrees in music performance.
Summers…
After 8th, 9th, 10th grade went to New England Music Camp
After 11th and 12th grades went to BUTI
After freshman and sophomore year of college went to Eastern Music Festival
After junior year of college did a trumpet workshop at Northwestern and played in an orchestra for three summer shows on cape cod. He was a substitute fo this ensemble but was called.
After senior year of college went to Aspen
After first year of grad school, played in a school ensemble in the summer at a summer music thing they sponsored.
After second year of grad school…and graduation…started a job touring with a brass ensemble.
In all cases, he took instrument lessons all summer long, either privately or as part of his summer program.