iPad 11" and Roland FP-10
When describing problems, always mention your OS and game version (shown at the bottom of the title screen).
If your keyboard has USB or MIDI ports, there is a tremendously high chance (>99%) it will work with Synthesia. See what you'll need on the keyboards page.
If your keyboard has USB or MIDI ports, there is a tremendously high chance (>99%) it will work with Synthesia. See what you'll need on the keyboards page.
They should work together just fine. 
Did you mean the 11" iPad Pro? If it's the model with USB-C, you can get away with connecting the two using a single, plain USB B-to-C cable.
Even better, the Bluetooth feature should let you connect them with NO additional hardware (although, the latency--or delay between pressing keys and the iPad finding out about them--over Bluetooth is usually a little higher than when using a cable).
Did you mean the 11" iPad Pro? If it's the model with USB-C, you can get away with connecting the two using a single, plain USB B-to-C cable.
Even better, the Bluetooth feature should let you connect them with NO additional hardware (although, the latency--or delay between pressing keys and the iPad finding out about them--over Bluetooth is usually a little higher than when using a cable).
One small caveat: if you've already updated your iPad to iPadOS 13 or later, that OS update broke the "Bluetooth Settings" button in Synthesia, which now crashes immediately if you tap it. (If you've still got an older version of iOS, it should be fine.)
We'll hopefully be releasing a small bug-fix update in a couple days to fix it on iPadOS 13, too!
We'll hopefully be releasing a small bug-fix update in a couple days to fix it on iPadOS 13, too!