Ravinia’s long-running summer training program for young professional musicians, the Steans Music Institute, has nurtured many careers— over 1,600 individual artists since 1988—at impressionable moments, and those who go on to bigger things often return in later years as part of main- stage programming. Among others, this summer violinist Augustin Hadelich will solo with the Chicago Symphony on July 25, more than 20 years after he spent a summer at the Steans Institute playing chamber music. And on July 18, the Viano Quartet will appear in the Martin Theatre, only four years after their virtual Steans experience during the pandemic year of 2020.