After studying the Physics of waves, our grade 8 students participated in a cross-curriculum project integrating Music and Physics. The students used Bluetooth microphones to record the wave form and length of various instruments. This led to finding the frequency and actual musical note. Instruments such as the guitar and double bass were found to have smooth, rounded wave forms, while instruments such as the triangle and trumpet were found to have sharp wave forms. Students were able to make strong connections between the frequency (Hz) range of their instruments and the notes that can be produced as well as analyzing intonation.