I looked up a few things mentioned here.
Big Al Whittle said "in 1966, the BBC released an Lp album to celebrate 1916 rebellion's 50th anniversary."
I found a past listing (album sold) for this item which includes photos and some useful information about the album here.
Fred McCormick said "Topic published an album celebrating the 1916 uprising; Ireland her Own. Topic. 12T 153. Also, Gael Linn released a very strange compilation called 1916 Mar do Cumadh an Aisling. Gael Linn CEF 014."
I found Ireland Her Own on amazon here and on youtube here.
I found a little information on Mar do Cumadh an Aisling here.
A guest linked to the RTÉ album The Story of Easter Week 1916.
You can order it on cd here.
Jim Carroll said, "Best album ever of Easter Rising songs was 'Easter Week and After by Dominic Behan"
I found it on youtube here.