References

Music and Language: A Developmental Comparison

The history of the harmonica

Wikipedia: Harmonica

Music as Language

Music and Language

Wikipedia: Music

Wikipedia: Definition of Music

Sangtar's Music Blog: The Origin

Sangtar's Music Blog: What is Music?

Wikipedia: Harmonium

The Harmonium Handbook

Miell, D., MacDonald, R., & Hargreaves, D.J. (2005). Musical Communication. Oxford University Press.

Cooke, D., (1959). The Language of Music. Oxford University Press.