Explanation of the score file:
In this format there are first a number of "measure" tags. These are stored in memory, so that they are reusable later. Within these "measure" elements are "instrument" elements, which specify which instrument to use for the subsequent notes.
Within the "instrument" tag you find "effect" and "note" tags. The "effect" tag is applied to all subsequent "note" tags within that "instrument" block
After these are stored you get to the "sequence" block, within which are "measure" tags, which identify the measure being played and the starting beat. This xml measure node is then loaded and its notes are played relative to the starting beat.