As I wrap up 30 years of jazz radio at WEMU, what strikes me most about this job is the relationships: with staff members, musicians and you. A way to celebrate those relationships is to share the studio and time. That is why I am inviting area musicians to be a “guest DJ” for an hour. You will learn much about your favorite musicians as they share stories of the music and musicians that inspired them. Case in point – today’s talk with saxophonist and flutist Doug Horn.