Daytime Park Music?

Yesterday, during a lovely playdate at the Rose Garden, I realized that this city really needs a daytime kids concert series in the parks.  Does that exist? 

Specifically I want to see Mr. Ben rocking out (Blastoff!) at the Rose Garden Amphitheatre.  Kids looooooooooove to play there, and they love his music and that venue is so special.  Don't you all want to pack a picnic and do this?

More generally, I think any and all music should be shared during the daytime hours in our parks for kids and adults alike.

Does this concept already exist?  If so, do tell! If not, can someone get on it?

I am aware of all the kid-friendly fab park concerts in the summer evenings.  I especially love this series, because of the venue (the amphitheatre).  But I am craving some mid-week, daytime (10am would be perfect) outdoor musical options.