My instrument is three in one. The three instruments
are a whistle,
which is part of the wind family, a guitar, which is part of the string
and a sand block, which is
part of the percussion family.
They work because of Science. The whistle works because
of sound waves, the
guitar works because of vibration, and the sand block
works because of friction.
I call my instrument "Triple Tri" because both these
words mean three.
Monica, Trinity Seventh Grade