Music App with Both Chord and Solo Keyboards?

Question

For a while now, I've been looking for an iPad app that I'd think there'd be dozens of, but I've yet to find one.
It would be a simple music composing app that lets you play a melody line on a keyboard while simultaneously playing a chord (via button or second keyboard) from a (modifiable) selection of chords. So, one hand composing melody, one finger (on the other hand) playing supporting chords.
It seems like it'd be a fairly intuitive way to quickly save rough musical ideas, but maybe it's just me.
Most of the apps I've downloaded let you make, play and/or record a sequence of chords, but there's no way to play a melody at the same time. I'd like the ability to control the playing of the melody and chords...tinker around with the combinations, you know?
The closest I've found is "SongSynth," but that just plays a push-button chord off the same note you're playing on the (only one-octive) keyboard. What if I want to play a G note in the melody over a chord that isn't rooted in G?
Anyway, hope this makes sense, and hope this app exists and you can steer me to it!

Answer 1

I agree!
It's hard enough to juggle earpieces, expensive hardware and belts (etc) for keys (etc) with software when exercising.
Particulary since most running log apps can't control Playlists directly.
Which to launch, then, start first…!
The simpler and better-integrated such handling is, the better.
It's tempting to think the changes are part of Apple's bigger plans to 'break up' iTunes, which has become unweildy, given all the functionality it's had to grow to encompass - when compared with a simple audio manager ten years or so ago.