Glass Armonica by B Franklin

'Making Music' is not your average DIY instrument book.
https://www.chapters.indigo.ca/en-ca/books/making-music-from-tambourines-to/9781580175128-item.html?ikwid=Making+Music+Ann+Wiseman&ikwsec=Home&ikwidx=
Since we've been working with water this week, we opted for Benjamin Franklin's Glass Armonica.

We started by filling the glasses 1/4, 1/2, 3/4 and full.
Then we predicted which volumes would produce high and low notes.

Miss C could not manage any sound with a single finger, so she went for the whole hand...with amazing results!