I am creating a musical app which needs to generate musical notes. The app needs the ability to produce pitches that sound like realistic instrument based on changing input from the user. These pitches could also be between note (ex. Ab 5 cents flat). I have searched and found a tone generator tutorial however nothing including soundfonts. Any help would be appreciated.
Tone Generator Tutorial - https://www.cocoawithlove.com/2010/10/ios-tone-generator-introduction-to.html