Disklavier

I've also connected my Mark IV to my home wireless network via an 
Airport Express access point, which is plugged in to the same surge 
protector as my piano.  There are occassional issues, such as inability 
of the handheld PDA device to connect to the piano.  I believe both the 
home wireless and the PDA operate on 2.4GHz, so momentarily unplugging 
the Airport Express usually resolves this.  I also sometimes 
get "illegal IP address" messages when trying to connect.  These are 
resolved by shutting down the wireless network or the piano or both and 
re-booting.  Overall, though, I'm very pleased with the performance of 
the system via wireless network.  

Jim Q.