ops.push_back(Operation(Operation::PUSH, Value(Value::INDEX)));
ops.push_back(Operation(Operation::PUSH, Value(rise)));
ops.push_back(Operation(Operation::MULT));
ops.push_back(Operation(Operation::PUSH, Value(Value::N_NOTES)));
ops.push_back(Operation(Operation::PUSH, Value(Value::INDEX)));
ops.push_back(Operation(Operation::PUSH, Value(rise)));
ops.push_back(Operation(Operation::MULT));
ops.push_back(Operation(Operation::PUSH, Value(Value::N_NOTES)));