Porportion Hz Note Glass #1 0 660Hz E 0.25 660Hz E 0.5 ~600Hz D 0.75 ~450Hz A 1 ~290Hz C# Glass #2 0 ~960Hz B-1/4 step 0.25 ~945Hz B? 0.5 ~850Hz A? 0.75 ~620Hz E? 1 ~460 B?