I’ve just accepted an offer for creating mandolin version of this interesting application: www.tunefox.com. In short: 100 songs (solos), 3 levels, switchable licks. Expected launch is in September for iOS, later for web as well. Stay tuned for more details.
Recently I’ve been spending a lot of time by transcribing music upon request. If this is something that should help you as well, don’t hesitate to contact me. More info.