"[2] In 1989 he began a collaboration with Jonathan Larson, and provided lyrics for Rent, "I Should Tell You", and "Santa Fe".
In addition to Rent, he has written many one act plays including "Light Years (one-act)", "Reunions", "The News", "Little Duck", Of Two Minds, Night Rules, and In the Middle of the Night, which were performed in Ensemble Studio Theatre Marathons.
Full-length plays by Aronson include "Light Years" which premiered at Playwrights Horizons, "The Art Room" which premiered at the Woolly Mammoth Theatre and Wellfleet Harbor Actors Theater, and "First Day of School" which premiered at 1812 Productions and SF Playhouse, and was named Best New Play for a medium-sized theater by the Bay Area Theatre Critics Circle in 2009.
He has written for many popular children shows, such as Postcards from Buster, Codename: Kids Next Door, Wonder Pets!, The Upside Down Show, The Backyardigans, Courage the Cowardly Dog, and co-created Peg + Cat along with Jennifer Oxley.
[6] He currently lives in New York City with his wife Lisa Vogel (whom he married in 1990),[6] and children Anna and Jake.