This is a simple test project that works in combination with Howler to produce a player designed for easily creating breakcore style drums.
A 2-bar drum beat is loaded, the y-axis of the piano roll is then used to determine where within those 2 bars playback will happen from.
So for example, a note in the piano roll at beat 1 half-way up the y-axis means that at beat 1, the drum clip will be played from half-way through the file.