PP possible products
Music based
Others
Music and science fusion
Science based
Composing
Preforming
Research
Make instrument
Composing a piece that will decrease someone's stress/calm/ levels
Practical physical product
Science: Researching about how different notes, combinations of notes and genres of music could affect stress levels
Music: Composing a piece with the appropriate chords, melody and rhythm (maybe lyrics, but try to avoid)
Science: Sound waves and vibrations (knowledge based)
Music: Play song on the instrument (skill based)
Science: Brain activity and reaction to notes (knowledge based)
Household inconvenience
When testing if the song (final product) makes people calm, you should interview people
Knowledge: How to make an item using 3D printing and other techniques
Practical: Making the item