clean up and addition of click to set tempo
clean up and addition of click to set tempo

Updating of div names; removal of unused code; addition of click to set tempo
eohomegrownapps/musicblocks,Hrishi1999/musicblocks,eohomegrownapps/musicblocks,sachi-d/musicblocks,eohomegrownapps/musicblocks,walterbender/musicblocks,walterbender/musicblocks,Hrishi1999/musicblocks,Hrishi1999/musicblocks,sachi-d/musicblocks,sachi-d/musicblocks,walterbender/musicblocks