These instruments are extremely simple to design, build, and play. They can also be made to be extremely cheap (free in my case) or very expensive (if you use PVC and make a huge set with many octaves.) As an educator, I think these instruments could make for a great cross-curricular lesson involving music, physics, art, and just plain ol' fun because they are pretty simple, and have the potential to be very very cheap.
I will try to show/explain my steps in a couple different ways to accommodate for the various learning styles in the audience. If you would like to know more about the theory behind my design please check out the guide linked above.
While I will try to be as clear as possible, bear in mind that while my steps are specific to my materials, the general process will be the same regardless of what you build your instrument out of.
Step 1: Step 1 - Materials and Tools
Materials I used because they were on-hand and free:
- 75mm diameter cardboard tubes (the kind that large rolls of paper are spooled onto for plotter printers) that are 92.1 cm long
- cardboard boxes (these were the boxes that held the paper before the rolls were emptied)
- drink coasters (cheap cardboard ones)
Tools I used
- cutting tool (i used a knife but a saw could work depending on your tube material)
- tape measure
- writing utensil
- elastic band
- hot glue
- duct tape
- Microsoft Excel (you could use a calculator, pencil, and paper instead)