add hidden blocks to all of the clamps with listeners
add hidden blocks to all of the clamps with listeners

eohomegrownapps/musicblocks,walterbender/musicblocks,sachi-d/musicblocks,walterbender/musicblocks,eohomegrownapps/musicblocks,Hrishi1999/musicblocks,Hrishi1999/musicblocks,walterbender/musicblocks,sachi-d/musicblocks,Hrishi1999/musicblocks,eohomegrownapps/musicblocks,sachi-d/musicblocks