I am a musical instrument enthusiast. I am bringing my piano wherever I go and I found it impractical and old fashion. I wish iphones have this feature and will assist me play my favorite tunes on screen. Is it possible?
Is touch screen musical instruments possible on iPhone?
There are many musical instruments for iOS devices. If you're looking for a lightweight midi controller compatible with iOS so you can use your iphone/ipad/ipod touch as a sound module, we'd recommend the Line6 Mobile Keys series in conjunction with a program like IK Multimedia's Sample Tank for iOS. You can also use iOS devices as a midi controller to control other hardware or software, you just need a midi interface like this one
Also, if you are looking to use the iPhone as a standalone instrument you should check out Jordan Rudess' Samplewiz and Morphwiz apps. There are dozens of others you can find by searching the app store as well.
Hope this helps. Good luck in your musical adventures.