Sometimes Google Books scores a win for me in discovering hidden historical gold, like this one about a part of #musichistory https://www.google.com/books/edition/The_Tonometer_Explaining_and_Demonstrati/HMVprzyaKu0C?hl=en
The Tonometer, Explaining and Demonstrating ... All the 32 Distinct and Different Notes, Adjuncts Or Supplements Contained in Each of Four Octaves, Inclusive of the Gamut Or Common Scale of Musick, Etc

Google Books