I'm looking for a copy of a music textbook that we used in music class when I was in 7th grade (1966-67).

Why?
Well, my fascination for antique phonographs began to develop during that time, and I was on fire to learn all I could about the history and development of them. I had a set of encyclopedias, and devoured everything the local library had on Thomas Edison, but it wasn't until I was leafing through that music textbook one day in class that I discovered a 3-4 page "History of the Phonograph" somewhere near the middle (as I recall). Looking back, the information must have been taken either from Read & Welch's From Tinfoil to Stereo or Roland Gellatt's The Fabulous Phonograph because many high points were covered. It was there I first learned the dates of major milestones such as the development of the Graphophone in the 1880s, Emile Berliner's Gramophone in the 1890s, the formation of Victor in 1901, the introduction of the Victrola in 1906... I thought I'd found a treasure trove of information and I yearned for more (and that has never let up

Anyway, I'd love to obtain a copy of that first fundamental reference in my collecting/researching life. I don't know the title, nor when it was published (although I'd guess between 1956 and 1966). I've wasted a lot of time on eBay hoping that my various searches would come up with something but so far I've been skunked. I'm about ready to give it up as a foolish, sentimental wild goose chase, unless someone out there happens to have an idea.

Can anyone help me?

Thanks,
George P.