The New Pirates of Penzance

[shaneffrenchrolandplayer]

Hi Has anybody on here played the keyboard part for the pirates of Penzance. I have never played a show this old and I cannot figure out some of the technical instructions as I think there are for a specific model of keyboard.

First of all
In the change the font to indicate the change of instruments there appears "CRU" I assume this is a specific keyboard? Also in same font I get "ARP"

ON the top of every piece I get a littel chart that contains information that must be volume and patch numbers?

Bass; off B.F 66 4.5 3 L. 5(45) 5(6) R 5(45) 5(6) MED. BRITE


Any info would be great

Thanks
Shane