IPhone App - Guessing Game

My company requires a developer to create an iPhone App for our new game idea. The game will be quite simple, it will contain 4 different levels, within those levels the player will have around 25 theme tunes to guess, the player will be able to play a short audio clip of the theme and then they will type in what they think it is. To move onto the next level the player will need to have guessed a certain amount from previous levels. That is the game in brief so you can get the idea of the type of app.

Thanks.