The area of music composition and/or education apps is becoming more interesting by the day on Apple’s iPad. Two have just gone live that we think are worth taking note of. WI Orchestra is ‘a full orchestral library and composition tool’ for the tablet, letting people layer strings, brasswinds, woodwinds, saxophones and percussion on top of one another. The app is free, the the individual instrument groups are bought via in-app purchase. Meanwhile, Juno Jr‘s The Day The Music Stopped is based on DVD music edutainment brand Juno Jr, and mixes 3D animation with original compositions, and gets kids to start putting their own melodies and harmonies together while working through the interactive book-app.