Music is an art and a science. Music notes, reading sheet music and music theory are some of the vital aspects that a musician should know by heart. Knowing the different scales there are in music is a very important subject too. A music scale is any set of music notes ordered by fundamental frequency or pitch. There are music scales for jazz music or for rock music. A music scale defines the type of music you are listening. This app is great for anyone looking for guitar scales or piano scales. Actually all the scales contained in this app are useful for all music instruments and for anyone interested in singing.