7 strings pentatonic tone sequence d' - e'' made of ash wood incl. tuning key The children's harp inspires with its delicate tone to listen and make music and is suitable for children from 7 years of age as their first instrument. It is made of ash wood and comes with tuning key, but without case. 7 strings, pentatonic, tone sequence d' - e''. Dimensions: 47 x 23 cm. For your information: First musical instruments Children love fine sounds and almost always choose pentatonic tone sequences, the "primeval music of mankind", which always sounds harmonious. This is why pentatonically tuned instruments are particularly suitable for early musical education.