this app is an amazing HARP musical instrument simulation app that has many features that make this app unique Harp is a musical instrument with lovely sound . but here this Harp has some features that made this app unique you can find to many free HARP apps in app store . but , this app has different features : - oriental / arabic rhythms - accords with quarter flat tunes - real sound that is recorded in professional studio - ability to mix the accord and rhythm and instrument volumes - ability to pitch the sounds by moving on each wire - ability to transpose the notes - ability to change the rhythm speed - has 2 different octave selectable on main page - has oriental / persian / arabic tunes with quarter flat notes with this app you can easily play this musical instrument without any musical knowledge try it . you'll love it