Meet Trudi Treble and Barry Bass: they re here to take kids on a musical journey With their help, children aged 5 to 9 will begin to learn the language of music and understand clefs, staves, notes, and rhythm. In addition to great games, such as making an edible stave and notes with candy, budding musicians will start to play some of the most popular instruments, including the piano, guitar, and recorder. Appealing, comics-style illustrations make the experience thoroughly enjoyable."