I can get a list from the solution of all calls to a particuliar method using the following code:

        var createCommandList = new List<MethodSymbol>();
        INamedTypeSymbol interfaceSymbol = (from p in solution.Projects select p.GetCompilation().GetTypeByMetadataName("BuySeasons.BsiServices.DataResource.IBsiDataConnection")).FirstOrDefault();
        foreach (ISymbol symbol in interfaceSymbol.GetMembers("CreateCommand"))
        {
            if (symbol.Kind == CommonSymbolKind.Method &&
                symbol is MethodSymbol)
            {
                createCommandList.Add(symbol as MethodSymbol);
            }
        }
        foreach (MethodSymbol methodSymbol in createCommandList)
        {
            foreach (ReferencedSymbol referenceSymbol in methodSymbol.FindReferences(solution))
            {
                foreach (ReferenceLocation referenceLocation in from l in referenceSymbol.Locations orderby l.Document.FilePath select l)
                {
                    if (referenceLocation.Location.GetLineSpan(false).StartLinePosition.Line ==
                        referenceLocation.Location.GetLineSpan(false).EndLinePosition.Line)
                    {
                        Debug.WriteLine(string.Format("{0} {1} at {2} {3}/{4} - {5}", methodSymbol.Name,
                                                                            "(" + string.Join(",", (from p in methodSymbol.Parameters
                                                                                                    select p.Type.Name + " " + p.Name).ToArray()) + ")",
                                                                            Path.GetFileName(referenceLocation.Location.GetLineSpan(false).Path),
                                                                            referenceLocation.Location.GetLineSpan(false).StartLinePosition.Line,
                                                                            referenceLocation.Location.GetLineSpan(false).StartLinePosition.Character,
                                                                            referenceLocation.Location.GetLineSpan(false).EndLinePosition.Character));
                    }
                    else
                    {
                        throw new ApplicationException("Call spans multiple lines");
                    }
                }
            }
        }

But this gives me a list of ReferencedSymbol's. Although this gives me the file and line number that the method is called from I would also like to get the specific arguments that the method is called with. How can I either convert what I have or get the same information with Roslyn? (notice the I first load the solution with the Solution.Load method and then loop through to find out where the method is defined/declared (createCommandList)). Thank you.