Anybody know what the "(P8)" means in a chord display?

Attached Files (Click to download or enlarge) (Only available when you are logged in)
2015-01-31_15-07-40.jpg (36.55 KB, 67 downloads)

BIAB & RB2025 Win.(Audiophile), Sonar Platinum, Cakewalk by Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Kontakt, Focusrite 18i20, KetronSD2, NS40M Monitors, Pioneer Active Monitors, AKG K271 Studio H'phones