with 
set [s_months] as descendants([Date].[Calendar].[All Periods], [Date].[Calendar].[Month])
member [c_months] as (existing [s_months]).count

select 
  [c_months] on columns,
  [Date].[Calendar Quarter].[Calendar Quarter] on rows
from
  (
    select 
	  {[Date].[Calendar].[Month].&[2006]&[5]:[Date].[Calendar].[Month].&[2007]&[1]} on columns 
	from [Adventure Works]
  )

with 
set [s_months] as descendants([Date].[Calendar].[All Periods], [Date].[Calendar].[Month])
set [s_days] as [Date].[Date].[Date]
member [c_months] as (existing [s_months]).count
member [c_days] as (existing [s_days]).count

select 
  {[c_months], [c_days]} on columns,
  [Date].[Calendar Quarter].[Calendar Quarter] on rows
from
  (
    select 
	  {[Date].[Calendar].[Date].&[20060520]:[Date].[Calendar].[Date].&[20070110]} on columns 
	from [Adventure Works]
  )