Forums Members Recent Posts Forums Main Category Current Yamaha Synt... CP Series Stage Pia... Expanding CP73/88 S... Notifications Clear all Expanding CP73/88 Stage Piano CP Series Stage Pianos Last Post by Catherine 3 years ago 1 Posts 1 Users 0 Reactions 485 Views RSS Catherine Posts: 85 Reputable Member Topic starter Here are some ways to expand your new Yamaha CP73/88 Stage Piano with free downloads, OS updates and other resources. Find them here. Posted : 07/02/2022 9:46 pm Share: