Google Code-in

Sound Effects are distinct from voices and drum sounds. so they should have their own selector. While it is a bit tedious to add a new selector to Music Blocks, it is mostly cut-and-paste. The relevant files are: block.js, basicblocks.js, utils/synthutils.js and utils/musicutils.js

The task is to essentially replicate the drumname block logic with a new block, effectsname. To seed the effects library, move the animal sounds from the drum palette.