Most of the music on this web site uses Piob Master from Ceol Mhor Software.There are a few quirks with in in that if you have too many notes in a bar it does not scale it down so they all fit. What you end up is a bit of a clutter. Overall though it is a worthy program. The fact that you can get audio in either practice chanter or bagpipes is a real plus. Many have commented that they need to hear the audio to understand the music. They also provide software for drummers