produce sound before firing in case firing causes disposal of the PushButtonModel, https://github.com/phetsims/sun/issues/636 https://github.com/phetsims/sun/issues/631
produce sound before firing in case firing causes disposal of the PushButtonModel, https://github.com/phetsims/sun/issues/636 https://github.com/phetsims/sun/issues/631

phetsims/sun,phetsims/sun,phetsims/sun