Displaying price levels on the web store item detail page

We want to display a regular price (online price) and a member price on the item detail page of the web store. We use the following tags for displaying these prices:

<%=getCurrentAttribute('item','salesPriceHTML')%>
<%=getCurrentAttribute('item','pricelevel2')%>

This works fine for regular inventory items, but for matrix items, the second price does not display (price level 2):

<%=getCurrentAttribute('item','pricelevel2')%>

Note that the sub matrix items have different pricing, and therefore, there is no pricing stored at the parent matrix level. If we were to add a price for this price level at the parent matrix item level, it does display. But obviously we cannot do that since there is a range of prices in the sub matrix items that dynamically construct the parent price.