Learning Ukulele In 7 Days is the ideal start to learn to play ukulele. You don´t need any special knowledge to use this app. All you need is a ukulele to use it as a learning tool. Optionally, you can use the chordfinder to look up some chords or the tuner to tune your instrument. The app contains 7 lessons, so it gives the beginner the opportunity to learn to play step by step. At the end of each lesson, you will learn to play a song.