The Yamaha Montage and MODX+ has this same Feature as well! I use it all the time. They have a dedicated USB knob on the top left corner where the volume is at! It’s Amazing!
I use the Vienna symphonic library version for the Yamaha, and what I found is any keyboard that has a MIDI port can do this. The apps come down to whether they’re available for both iOS and android or just 1. But the best sounds come from the computer vsts.
Damn that is a sick feature. I gotta look into whether or not the Roland FP-30X can do that (currently the piano I'm looking to purchase). I know it's one of Roland's more affordable pianos so I feel like it could go either way.
I thought I was done buying keyboards and was going to go midi controller but after trying several different options I see that it’s better having the audio interface built in the keyboard or some kind of audio in. The non class compliant audio driver on my Roland Juno DS is one of my hinderances for what I want to do. It would be nice if they made an iOS driver app to handle this. I was just looking. Today to see if the fantom 0 has a class compliant driver. I see that I can get the 07 at a discount and the $200 rebate. Tempted to grab it but unsure. I like the touch screen faders and such. Polyphony used to be a big issue but being able to use iPad sounds with physical modeling helps overcome some of that. I have been using an audio interface but I find that having everything stay digital before coming out seems to have a better sound. Like when I play the instrument apps and record them on the iPad it sounds higher quality than when I use audio cables in to post videos.
