This book is based on the Doodlebops episode "Keep Trying" from the hit Playhouse Disney show.

Once again, Rooney has invented something. This one is a funny looking musical instrument, called the Honkophone. When he tries to play it, the Honkophone makes an obnoxious sound, and Rooney is upset that he can't even play his own invention.

The other Doodlebops and Mazz then try to show Rooney that they can't do things and must keep trying to get better. The Doodlebops don't let him get frustrated, but assure him that practice makes perfect. Rooney is still upset though and wants to give it all up.

Fortunately, Rooney figures it out right before the concert, and is able to make beautiful music for the kids.