The numbered keys used are `` NUMBER@1 '' , `` NUMBER@2 '' , and `` NUMBER@3 '' for green notes , `` NUMBER@4 '' , `` NUMBER@5 '' , and `` NUMBER@6 '' for red notes , and `` NUMBER@7 '' , `` NUMBER@8 '' , and `` NUMBER@9 '' for yellow notes .

The numbered keys used are `` NUMBER@1 '' , `` NUMBER@2 '' , and `` NUMBER@3 '' , for green notes `` NUMBER@4 '' , `` NUMBER@5 '' , and `` NUMBER@6 '' for red notes , and `` NUMBER@7 '' , `` NUMBER@8 '' , and `` NUMBER@9 '' for yellow notes .
