Pattern 3 - Rock Straight 8 - Hi Hats All Closed - File Name 'rockstraight8th3.mid'
Pattern 3a - Rock Straight 8 - 2nd bar - Last Hi Hat Open - 'rockstraight8th3a.mid'
Pattern 3b Rock Straight 8 - each bar - Last Hi Hat Open - 'rockstraight8th3b.mid'
Pattern 3c Rock Straight 8 - 2nd bar - '3+, 4+' Hi Hat Open - 'rockstraight8th3c.mid'
Pattern 3d Rock Straight 8 - Both bars - '3+, 4+' Hi Hat Open - 'rockstraight8th3d.mid'